Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/3226003
Is Reference of BF-es#Sense
LF-da#Sense
NF-de#Sense
LF-en#Sense
BF-it#Sense
Basses fréquences-fr#Sense
Lavfrekvens-da#Sense
BF-fr#Sense
Baja frecuencia-es#Sense
Low frequency-en#Sense
Niederfrequenz-de#Sense
Bassa frequenza-it#Sense