Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6811
Is Reference of Elektronenbuis-nl#Sense
Tubo de crecimiento-es#Sense
Growth tube-en#Sense
Tubo dove avviene l'accrescimento-it#Sense
Tube de croissance-fr#Sense
Reaktionsröhre-de#Sense