Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/3226004
Is Reference of I-ETS-en#Sense
I-ETS-fr#Sense
Interim European Telecommunication Standard-en#Sense
I-ETS-nl#Sense
Norme européenne de télécommunications provisoire-fr#Sense
Interim Europese Telecommunicatienorm-nl#Sense