TC 100
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Audio, video and multimedia systems and equipment

TC 100 Audio, video and multimedia equipment and systems
AGS Advisory Group on Strategy
AGM Advisory Group on Management
Editing Committee Editing Committee Editing Committee
Projects Projects directly under TC 100
TC 100
Title

Audio, video and multimedia equipment and systems

Scope

To prepare international publications in the field of audio, video and multimedia systems and equipment.
These publications mainly include specification of the performance, methods of measurement for consumer and professional equipment and their application in systems and its interoperability with other systems or equipment.

NOTE: Multimedia is the integration of any form of audio, video, graphics, data and telecommunication and integration includes the production, storage, processing, transmission, display and reproduction of such information.

Officers
Chairman Mr David Felland US
Secretary Mr Junichi Yoshio JP
Assistant Secretaries Mr Toshihiro Inokuchi JP
Mr Masatake Sakuma JP
Contact regarding French translations
Mr. Fabien Le Bonniec FR
Central Office Mr Matei Cocimarov Officer
Ms Izabela Witik Assistant
Members
Member countries For official TC 100 membership see IEC/TC 100
Liaisons
See TC 100 liaison list 
Internal Liaisons IEC/TC 1   100, TA 1, 2, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14
IEC/SC 3C Dr H. Ikeda 100, TA 1, 2, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14
IEC/TC 9/WG 43 Watanabe 100
IEC/TC 29   100, GMT
IEC/TC 46   TA 5
IEC/SC 46F Halme TA 5
IEC/TC 48B   TA 4, 5
IEC/TC 57/WG 21   TA 9
IEC/TC 59   AGS, TA 12
IEC/TC 76   100
IEC/TC 77   TA 5
IEC/TC 86   TA 5
IEC/TC 86A Perrot TA 5
IEC/TC 86B   TA 5
IEC/SC 86C   TA 5
IEC/TC 103   100, TA 4
IEC/TC 108 Mr Brazauski 100, AGS, AGM, TA 12, 13,14
IEC/TC 110 Mr Uehara TA 2
TA 12
IEC/TC 111 Schneider AGS, TA 1, 12
ISO/TC 36   TA 2, 6
ISO/TC 42 Mr J. Holm
Dr S. Foshee
100, TA 2
ISO/TC 42/WG 18 Mr J. Holm TA 2
ISO/TC 42/WG 23 Mr J. Holm TA 2
ISO/TC 130   100
ISO/TC 130/JWG 7   TA 2
ISO/TC 159/SC 4 Mr J. Alcorta TA 2
ISO/TC 184/SC 5 Mr J. Grant TA 4
JTC 1 Dr K. Grant 100, TA 2, 9
JTC 1/SC 23 Dr M. Mukai TA 6
JTC 1/SC 25

Dr W. Pattay

100, TA 4, 5, 9
JTC 1/SC 25/WG 1   TA 9
JTC 1/SC 25/WG 4   TA 4
JTC 1/SC 28 Dr F. Nakaya 100, TA 2
JTC 1/SC 29 Ms Y. Ogura 100, AGS
JTC 1/SC 34 Dr. Komachi TA 10
JTC 1/SC 35   100
JTC 1/SC 39   TA 13
CISPR/SC I   TA 1, 5
Cat A liaisons CIE/Division 2 Mr J. Holm TA 2
CIE/Div.2/TC 2-42 Mr J. Holm TA 2
CIE/Div. 8 Mr J. Holm TA 2
CIE/Div. 8 TC 8-10 Mr F. Nakaya TA 2
ECOS Mr T. Wilson TC 100, TA 12, 13, 14
ICC Mr J. Holm TA 2
ITU-R/SG 6/WP 6B Dr S. Hirakawa AGS, TA 1
ITU-R/SG 6/WP 6C Mr Yonge TA 2, 11
ITU-T/SG 5 Ms C. Bueti TA 14
ITU-T/SG 9 Mr M. Matsumoto TA 5, 9
ITU-T/SG 12   TA 2
ITU-T/SG 13   AGS
ITU-T/SG 15   TA 9
ITU-T/SG 16
Dr Kawamori AGS, TA 9
ITU-T IPTV GSI Dr Kawamori AGS
Cat B liaisons European Broadcasting Union   AGM, TA 6
Cat D liaisons 1394 TA Mr J. Yoshio TA 4
AES Mr M. Yonge 100, AGS, AGM, GMT, TA 1, 2, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14
AirFuel Alliance Mr E. Butler TA 15
ARIB Mr H. Iga TA 1
ATSC Mr J. Whitaker TA 1
DLNA Mr K. Miller TA 9
DVB Mr D. Westerkamp AGM, TA 5, 9
ECHONET Mr T. Naka TA 9
DIgital Europe TRPG Mr D. Westerkamp AGM, GMT
HbbTV Mr R. Koenen 100
IEEE 1722 Mr A. Gelter TA 4
MIDI Manufacturers Association Mr T. White TA 4, 9, 10
Open IPTV Forum Mr P. Szucs TC 100
RDS Forum Mr D. Kopitz. TA 1
SMPTE Mr H. Ohtaka 100, AGS, AGM, GMT, TA 1, 2, 4, 5, 6, 8, 9, 10, 11, 12, 13, 13
USB IF Mr J. Ravencraft TA 14
VESA TBA 100
Dependencies ACOS Mr Sakashita 100
CENELEC/TC 100X Mr Henninger AGM, TA 1, 4, 8, 9, 12
CENELEC/TC 209 Mr Gauger TA 5
Ecma TC 38 Schneider AGS, TA 12
EIA TBA 100
CEA TBA 100
EPA Mr Kaplin TA 12
ETSI TBA 100
ETSI/TC-SES TBA AGM
EBU/ETSI/CENELEC-JTC BROADCAST   AGM, TA 5
JEITA Mr S. Shitara 100
MTR Mr Harrison TA 12
VQEG   TA 11
Web site Web site: http://tc100.iec.ch
Webmaster: Mr T. Ezaki
TC 100/AGS
Title

Advisory Group on Strategy

Scope

The Advisory Group on Strategy (AGS) is charged with the design and development of long term strategies for TC 100 for the standardization of digital multimedia systems and equipment.
To meet this objective, the AGS advises and recommends action on long-term strategic plans and directions for organizational structure and procedures for more effective standards development.

The AGS will provide leadership to enable improved cooperation between industry and TC100 by creating the strategic plans, which will strengthen the relevance of TC100 standardization activities.

The AGS reports directly to the Chairman of TC100.

Note:
TC 100/AGS acted as an alternative to Sector Boards (document 140/AC:1999 paragraph 5). However, in accordance with the disbandment of Sector Board, the AGS became one of genuine TC 100 groups.

Members

The members of the AGS include:

  • Persons representing industry associations, where the members of the AGS cover global regions. Regions include: America, Europe, Asia and Oceanic. The AGS reviews and considers additional members periodically.
  • The Chairman, Secretary(ies) of TC 100.
  • IEC Central Office representative to give a strong support of the IEC Central Office.
Chairman Dr Yushi Komachi JP Asia
Secretary Mr Toshihiro Inokuchi JP TC 100 Ass. Secretary
Members     North America
Ms U. Haltrich DE Europe - Digital Europe

Mr M. Cocimarov

  IEC CO
Mr M. Dolan US North America
Mr S. Eguchi
JP Asia
Mr J. Yoshio JP TC 100 Secretary
Mr D. Felland US TC 100 Chairman
Ms Dr K. Grant UK Europe
    Oceania
Ms V. Lancaster US North America
Mr O-W Nam KR Asia
Mr M. Sakuma JP TC 100 Ass. Secretary
Mr. P. Talmora FI Europe - Digital Europe
Mr H.Amir-Alikhani
DE Europe - Digital Europe
Ms G. Wei US North America
Dr XY. Zhao CN Asia
Liaison representative Dr S. Hirakawa ITU-R/SG 6/WP 6M
Cat B
  ITU-T/SG 16 Cat B
Dr K. Grant ISO/IEC JTC 1/SC 29 Int
Web site http://www.y-adagio.com/public/committees/iec_tc100_ags/index.htm
 
TC 100/AGM
Title

Advisory Group on Management

Scope

To organize and co-ordinate the work of TC 100 an advisory group is needed, due to the large scale of TC 100. This advisory group submits recommendations to the Chairman and officers of TC 100 on:

  • the organization of TC 100, the co-ordination of the tasked work, the establishment of new TAs and the allocation of all new work items of TC 100.
  • the related work of the other IEC committees and other liaison bodies.
  • any other matter on which the Chairman requires advice.

The AGM advises and recommends actions on short-term, implementation and tactical management issues.

Members

The member of the AGM are:

  • chairmen and secretary(ies),
  • Technical Secretaries,
  • Technical Area Managers and General Maintenance Manager,
  • the representative of the IEC Central Office.
  • Project Leaders, working directly under TC 100, on invitation.
Chairman Mr David Felland US TC 100 Chairman
Secretary Mr Masatake Sakuma JP TC 100 Ass. Secretary
TA 1 TS
Members Dr Y. Komachi JP AGS Chairman
Mr M. Cocimarov   IEC CO
Mr J. Yoshio JP TC 100 Secretary, TA 11, 17 TAM
Mr T. Inokuchi JP TC 100 Ass. Secretary
TA 12 TS
Mr J. Woodgate UK GMM
Mr P. Talmola FI TA 1 TAM
Dr H. Sugiura JP TA 2 TAM
Mr J. Holm US TA 2 TS
Mr N. Okuda JP TA 2 ATS
Dr J-Y. Lee KR TA 4 TAM
Mr K-S. Choi KR TA 4 TS
    TA 5 TAM
Mr H. Tamura JP TA 5 TS
Mr H. Ohtaka JP TA 6 TAM
Mr K. Tsukada JP TA 6 TS
Mr H. Sakakihara JP TA 8 TAM, TA 14 TS
Mr K. Naka JP TA 8 TS
Mr Y. Uemura JP TA 10 TAM
Mr Y. Narui JP TA 10 TS
Mr M. Yonge UK TA 11 TS
    TA 12 TAM
Ms D. Sadowy US TA 13 TAM
Mr S. Eguchi JP TA 14 TAM
Ms G. Wei US TA 14 Vice TAM
Dr S-O. Lim KR TA 15 TAM
Dr O-W. Nam KR TA 15, 17 TS
Dr K. Grant UK TA 16 TAM
Ms U. Haltrich DE TA 16 TS
Mr G. Ichimura JP Audio TS
Liaison representative   DVB Cat D
Ms U. Haltrich DigitalEurope-TRPG Cat D
  EBU Cat B
Mr W. Honig IEC TC 108 Int
Mr G. Henninger CENELEC / TC 100x Dep
  ETSI / TC - SES Dep
  EBU/ETSI/CEN ELEC-JTC BROADCAST Dep
Web site  
 
TC 100 Editing Committee
Title

Editing Committee

ToR

The TC 100 editing committee will conduct to:

  • review and finalize resolutions of AGS, AGM and Plenary meetings,
  • give advices on editorial issues in whole TC 100 documentation,
  • review documents in some TAs where native English speaker does not exist and advise English wording,
  • solve problems on WORD and acrobat application with the help of TISS team of IEC CO, and
  • investigate any other editorial issues.

Members

 

Chairman Mr John Woodgate UK TC 100 GMM
Secretary Mr. Tadashi Ezaki JP TC 100 Secretary
Assistant Secretaries Mr Masatake Sakuma JP TC 100 Ass. Secretary
TA 1 TS
Mr Toshihiro Inokuchi JP TC 100 Ass. Secretary
TA 12 TS
Members Ms U. Haltrich DE  
     
Document 100/1986/INF
 
Projects directly under TC 100
62943 PT 60268-21 Sound system equipment – Loudspeakers - Acoustical (Output based) measurements
62943 PT 62106

Specification of the radio data system (RDS) for VHF/FM sound broadcasting in the frequency range from 87,5 MHz to 108,0 MHz

62943 PT 62943 Visible light beacon system for multimedia applications
62943 PT 63034 Microspeakers
62943 PT 63035 MIDI (MUSICAL INSTRUMENT DIGITAL INTERFACE) Specification 1.0 (Abridged edition, 2015)
62943 PT 63059 Multimedia Vibration Audio Systems - Method of measurement for audio characteristics of audio actuator by pinna-conduction
AC Adaptor PT 100-10
TR 63071
Stage 0 project on Wearable systems and equipment
Power supplying scheme for wearable system and equipment
AC Adaptor PT 100-13 Merged into PT 100-10
AC Adaptor PT 100-14 Cancelled
AC Adaptor PT 100-16 Cancelled
AC Adaptor PT 100-17 Cyber technology
 
PT 60268-21 Ed. 1.0
Title

Sound system equipment – Loudspeakers - Acoustical (Output based) measurements

Scope

This International Standard applies to passive and active sound systems such as loudspeakers, headphones, TV-sets, multi-media devices, personal portable audio devices, automotive sound systems and professional equipment. The device under test (DUT) may be comprised of electrical components performing analogue and digital signal processing prior to the passive actuators performing a transduction of the electrical input into an acoustical output signal. The standard describes only physical measurements which assess the transfer behaviour of the DUT between an arbitrary analogue or digital input signal and the acoustical output at any point in the near and far field of the system. This includes operating the DUT in both the small and large signal domains. The influence of the acoustical boundary conditions of the target application (e.g. car interior) can also be considered in the physical evaluation of the sound system. The standard does not assess the perception and cognitive evaluation of the reproduced sound and the impact of perceived sound quality.

Members
Project leader Dr W. Klippel DE  
Technical Secretary Mr G. Ichimura JP  
Experts Mr N. Suzuki
JP  
Mr A. Furuto JP  
Mr K. Kitaiwa JP  
Dr Y. Shen CN  
Mr S-L. Lee KR  
Mr J. Woodgate UK  
     
     
Liaison representative      
Current Stage ANW 100/2633/RVN Target date for CD: 2017-03 (SMB 157/21)
Web site tba
 
PT 62106 Ed. 4.0
Title

Specification of the radio data system (RDS) for VHF/FM sound broadcasting in the frequency range from 64,0 MHz to 108,0 MHz
Part 1: RDS system: Modulation characteristics and baseband coding
Part 2: RDS message format, coding and definition of RDS features
Part 3: Coding and registration of Open Data Applications ODAs
Part 4: Registered code tables
Part 5: Marking of RDS and RDS2 devices
Part 6: Compilation of technical specifications for Open Data Applications in the public domain

Scope

Part 1:This part of IEC 62106 describes the basic layer of the Radio Data System, RDS, intended for application to VHF/FM sound broadcasts in the range 64,0 MHz to 108,0 MHz which may carry either stereophonic (pilot-tone system) or monophonic programmes (as stated in ITU-R Recommendation BS 450-3 and ITU-R Recommendation BS.643-3).
Part 2: This part of IEC 62106 describes the coding and definition of features for the Radio Data System, RDS.
Part 3: This International Standard describes the ODA feature of the Radio Data System (RDS). Open Data Applications are a very effective and flexible way for adding additional applications to an RDS service.
Part 4: This International Standard contains a number of tables for use in the implementation of the RDS system. The tables in the present document are maintained by the RDS Forum Office. The RDS Forum Office applies an easy procedure for registering new values, to ensure that they may be used without the need to change immediately the RDS standard. The procedure for registering a new value in an existing table or the registration of a new table in the present document is described in clause 4.
Part 5: The present document describes receiver profiles and criteria that can be used for marking RDS receiver devices.
Part 6: This International Standard contains the technical specifications for Open Data Applications in the public domain. The present document is maintained by the RDS Forum Office. The RDS Forum Office applies an easy procedure for registering new Open Data Applications, to ensure that they may be used without the need to change the RDS standard. The ODA feature permits defining new applications that can be decoded on a receiver. The receiver must implement the adequate software handler for the specific AID which identifies the application. Receivers that have not implemented the software handler needed for decoding are not effected by ODA data received for any of the applications already defined and specified.

Members
Project leader Dr W. Klippel DE  
Technical Secretary Mr M. Sakuma JP  
Experts      
     
     
     
     
     
     
     
Liaison representative      
Current Stage Part 1: CCDV 100/2907/CDV Voling close on: 2017-08-18
Part 2: CCDV 100/2910/CDV Voling close on: 2017-08-18
Part 3: CCDV 100/2911/CDV Voling close on: 2017-08-18
Part 4: CCDV 100/2908/CDV Voling close on: 2017-08-18
Part 5 :CCDV 100/2909/CDV Voling close on: 2017-08-18
Part 6: CCDV 100/2912/CDV Voling close on: 2017-08-18
Web site tba
 
PT 62943 Ed. 1.0
Title

Visible light beacon system for multimedia applications

Scope

This International Standard is applicable to a visible light beacon system for multimedia applications, which is a system for providing various applications such as data transmission through multimedia devices, identification of matters, providing positional information, and establishment of various guiding systems by radiation transmission of simple information or ID information unique to the visible light source among visible light sources ubiquitously surrounding the facility. It specifies a single directional visible light communication system using visible light as the transmission medium named 'Visible light beacon system for multimedia applications'. It aims at establishing a unified standard concerning the lower communication layer common to these applications, and does not deal with upper communication layers which depend upon individual applications.

Members
Project leader Dr S. Haruyama JP  
Technical Secretary Mr M. Sakuma JP  
Experts Mr S. Suzuki
JP  
Mr M. Ohnishi JP  
Mr A. Shimura JP  
Mr R. Roberts US  
Ms U. Haltrich DE  
Mr K. Horisaki JP  
Mr C. Guo CN  
     
Liaison representative      
Current Stage APUB 100/2857/RVD (Waiting for publication IS: 2017-04?)
Web site tba
 
PT 63035 Ed. 1.0
Title

MIDI (MUSICAL INSTRUMENT DIGITAL INTERFACE) SPECIFICATION 1.0 (ABRIDGED EDITION, 2015)

Scope

This International Standard specifies a hardware and software specification which makes it possible to exchange symbolic music and control information between different musical instruments or other devices such as sequencers, computers, lighting controllers, mixers, etc.
For this proposal, NP and CDV simultaneous circulation is applied given in 2.3.4 of the IEC Supplement of the ISO/IEC Directives.

Members
Project leader Mr T. White US  
Technical Secretary Mr M. Sakuma JP  
Experts Mr Y. Kawaguchi
JP  
     
     
     
     
     
     
     
Liaison representative      
Current Stage PPUB (IS published: 2017-06)
Web site tba
 
PT 63034 Ed. 1.0
Title

Microspeakers

Scope

This International Standard applies to micro-speakers used in portable electronic devices. Usually, the size of the vibration area is not greater than 40 mm. This also applies to loudspeaker systems (known as "box"), which consist of one or more loudspeaker drive units provided with an enclosure. This standard provides the characteristics of micro-speakers that need to be specified as well as the relevant methods of measurement for micro-speakers that use sinusoidal signals, or noise, or impulsive signals. The main characteristics include, but are not limited to, impedance, amplitude frequency response, distortion, and power handling.

Members
Project leader Dr Y. Shen KR  
Technical Secretary Mr. G. Ichimura JP  
Experts Mr D. Guiguan
CN  
Mr W. Klippel DE  
Mr K. Kitaiwa JP  
Mr N. Suzuki JP  
Mr M. Dolan US  
Mr G. Hill UK  
     
     
Liaison representative      
Current Stage ANW 100/2694/RVN Target date for CD: 2016-10
Web site tba
 
PT 63059 Ed. 1.0
Title

Multimedia Vibration Audio Systems - Method of measurement for audio characteristics of audio actuator by pinna-conduction

Scope

This International Standard specifies measurement method for sound transmission performance of audio actuator by pinna-conduction. Audio actuator is device that designed to provide vibration to tissue around pinna (near the tragus) and to generate sound in ear canal. Audio actuator is widely used for headphones and loudspeakers of mobile phones.

Members
Project leader Mr T. Inagaki JP  
Technical Secretary Mr. G. Ichimura JP  
Experts Mr A, Hirano
JP  
Mr M. Dolan US  
Dr Y. Shen CN  
Mr O-W Nam KR  
Mr J. Woodgate UK  
     
     
     
Liaison representative      
Current Stage CCDV 100/2815/CDV (Closing date: 2017-03-17)
Web site tba

IEC TR 63094
Title

IEC TR 63094: Multimedia systems and equipment – Multimedia signal transmission – Dependable line code with error correction

Scope

This document specifies the line code 4b/10b for dependable multimedia signal transmission required for complex machines, such as robots and automobiles. This document corresponds to the functions specified in layer 1 to layer 2 of the OSI reference model (ISO/IEC 7498). The purpose of this document is to facilitate the development and use of the 4b/10b in dependable systems by providing a line code protocol. This document provides a line code protocol for interconnections among distributed real-time systems, including embedded systems, control systems, amusement systems, robot systems, and intelligent buildings. The 4b/10b can achieve the line code with ECC (error code correction). The 4b/10b is the line code that realizes embedded clock, DC balance, error detection and error correction at a time, which was not able to satisfy these functions in one codec by conventional schemes, so that the 4b/10b line code can achieve highly reliable and dependable digital communications.

Members
Project leader Mr N. Yamasaki JP  
Technical Secretary Mr T. Inokuchi JP  
Experts
   
     
     
     
     
     
     
     
     
     
     
Liaison representative      
     
Current Stage

RVDTR 100/2871/RVDTR (Target date for TR: 2017-03-31)

Web site tba
 
PT 63xxx Ed. 1.0 (To be established)
Title

Multi-screen LCD display systems –
Part 1: Conceptual model (TS)
Part 2: Measuring methods (IS)

Scope

These documents specifie a conceptual model and measuring methods of multi-screen LCD display systems. The conceptual model defines typical functional components to compose multi-screen LCD systems and describes the system structure and signal flow. The measuring methods are specified for
- Gap( physical, optical)--- Detail splicing precision;
- Image dislocation—Picture display accuracy of Multiscreen LCD display system;
- installation tolerance---The flatness of terminal in surface and vertical direction; and
- brightness uniformity--- Adjacent units brightness uniformity.

Members
Proposed Project leaders Mr W. Xu CN Part 1
Mr C. GUO CN Part 2
Technical Secretary Mr. M. Sakuma JP  
Experts
   
     
     
     
     
     
     
     
Liaison representative      
Current Stage Part 1: RVN 100/2920/RVN
Part 2: RVN 100/2923/RVN
Web site tba
 
PT 100-10, IEC TR 63071
Title

Stage 0 project on wearable system and equipment
IEC TR 63071: Power supplying scheme for wearable system and equipment

Scope

To identify opportunities for standardization on wearable systems and equipment extending the activity of Study Session 8 in the AGS

Members
Co-Project leaders Ms U. Haltrich DE  
Mr J. Yoshio JP  
Technical Secretary Mr M. Sakuma JP  
Experts Mr H. Zhang
CN  
Ms L. Wang CN  
Ms J. Laurila-Dürsch DE  
Dr K. Grant UK  
Mr P. Talmola FI  
Mr T. Kosaka JP  
Mr T. Fujiwara JP  
Mr L. Cheng CN  
Mr T. Nishigaki JP  
Ms I. N. Straszewski DE  
     
Liaison representative      
     
Current Stage

PWI 100/2474/INF 100/2678/INF
PT 100-13 was merged to PT 100-10
IEC 63071: PPUB 100/2816/RVC (TR published: 2016-12-14)

Web site tba
 
PT 100-16 Cancelled
Title

Stage 0 project on conceptual model for TC 100 standardization on multimedia robotics technology

Scope

The project team will
- study robotics technologies as well as those discussed in various SDOs and ACART;
- identify the functionality of multimedia robotics components and the relationships between them and define multimedia robotics services in TC 100; and
- prepare a draft Technical Report.

Members
Interim Project leader Mr T. Inokuchi JP  
Technical Secretary Mr T. Inokuchi JP  
Experts
   
     
     
     
     
     
     
     
     
     
     
Liaison representative      
     
Current Stage

Call for experts 100/2828/AC (Closing date: 2016-12-23)
IEC TR 63094: APUB 100/2871/RVDTR (Waiting for publication TR: 2017-03)
Cancelled: 100/2949/INF

Web site tba
 
PT 100-17 (to be established)
Title

Stage 0 project conceptual model for TC 100 standardization on multimedia cyber technology

Scope

The project team will
- study use cases related to cyber technology in TC 100;
- identify the conceptual model for TC 100 cyber technology and possible standardization items; and
- prepare a draft Technical Report.

Members
Recommended Project leader Mr J. Yoshio JP  
Technical Secretary Mr T. Inokuchi JP  
Experts
   
     
     
     
     
     
     
     
     
     
     
Liaison representative      
     
Current Stage

Call for experts 100/2917/INF

Web site tba
 
 
 
 
 
 
 
 
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