Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6411005
Is Reference of Dual-layer-optagelse-da#Sense
Dobbeltlagsoptagelse-da#Sense
Dobbeltlagsbrænding-da#Sense
Double layer recording-en#Sense
Dual layer recording-en#Sense