Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Horizontalfrequenz-de#Sense
Zeilenfrequenz-de#Sense
.fréquence lignes-fr#Sense
.line frequency-en#Sense
Horizontal frequency-en#Sense
Fréquence de balayage horizontal-fr#Sense
Lijnfrekwentie-nl#Sense