Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/52
Is Reference of Notwendigkeit des Schutzes der Umwelt-de#Sense
Noodzaak van milieubescherming-nl#Sense
Imperativo dell'ambiente-it#Sense
Imperativo ambiental-pt#Sense
Imperativo del medio ambiente-es#Sense
Miljøkrav-da#Sense
Περιβαλλοντική επιταγή-el#Sense
Environmental imperative-en#Sense
Impératif de l'environnement-fr#Sense