Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6826
Is Reference of Tubo de campos cruzados-pt#Sense
Tubo de campos cruzados-es#Sense
Tubo con campi incrociati-it#Sense
Carcinotronrör-sv#Sense
Kreuzfeldröhre-de#Sense
Crossed-field-en#Sense
Tube à champs croisés-fr#Sense
M-typerør-da#Sense
Dwarsveldbuis-nl#Sense