Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/10
Is Reference of Gruppo "Problemi CECA" / Ricerca per il carbone-it#Sense
Working Party on ECSC Questions / Coal research-en#Sense
Groupe "Questions CECA" / Recherche charbon-fr#Sense
Groep EGKS-vraagstukken / Steenkoolonderzoek-nl#Sense
Gruppen vedrørende EKSF-spørgsmål / kulforskning-da#Sense
Gruppe "EGKS-Fragen" / Kohleforschung-de#Sense