Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/24
Is Reference of Système Quotas-fr#Sense
Sistema Quotas-it#Sense
Quotas-systeem-nl#Sense
Σύστημα ποσοστώσεων-el#Sense
Quota system-en#Sense
System "Quotas"-de#Sense
Sistema Quotas-es#Sense
Quotas-systemet-da#Sense
Sistema Quotas-pt#Sense