Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Selbstverpflichtung-de#Sense
Compromiso voluntario-es#Sense
Engagement volontaire-fr#Sense
Vrijwillige verbintenis-nl#Sense
Negotiated commitment-en#Sense
Δέσμευση κατόπιν διαπραγματεύσεων-el#Sense