Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/3226004
Is Reference of Optical sound track-en#Sense
Lichttonspur-de#Sense
Optisch geluidsspoor-nl#Sense
Cinta sonora óptica-es#Sense
Banda sonora óptica-es#Sense
Piste sonore optique-fr#Sense