Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6826
Is Reference of Refraktor-sv#Sense
Rifrattore-it#Sense
Réfracteur-fr#Sense
Refractor-es#Sense
Refraktor-de#Sense
Refractor-nl#Sense
Refractor-pt#Sense
Refractor-en#Sense
Refraktor-da#Sense
Taitin-fi#Sense
Διαθλαστήρας-el#Sense