Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Pertinenzprinzip-de#Sense
Pertinentiebeginsel-nl#Sense
Betreffsgrundsatz-de#Sense
Clasificación por materias-es#Sense
Subject classification-en#Sense
Classement par matière-fr#Sense