Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/3226003
Is Reference of Sistem de acces condiționat-ro#Sense
Système d'accès conditionnel-fr#Sense
Conditional access system-en#Sense
Σύστημα υπό όρους πρόσβασης-el#Sense