Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/3226
Is Reference of CMR-it#Sense
World Radiocommunications Conference-en#Sense
WRC-pl#Sense
Conférence mondiale sur les radiocommunications-fr#Sense
Światowa Konferencja Radiokomunikacyjna-pl#Sense
CMR-fr#Sense
Conferenza mondiale delle radiocomunicazioni-it#Sense
WRC-en#Sense