Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/2431001
Is Reference of Validity of commitments-en#Sense
Ισχύς των αναλαμβανομένων υποχρεώσεων-el#Sense
Geldigheidsduur van verbintenissen-nl#Sense
Forpligtelsers gyldighed-da#Sense
Validité des engagements-fr#Sense