Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6826
Is Reference of Tache focale-fr#Sense
Fokuseringsplet-da#Sense
Focal spot-en#Sense
Mancha focal-pt#Sense
Εστιακή κηλίδα-el#Sense
Inslagschijf-nl#Sense
Macchia focale-it#Sense
Mancha focal-es#Sense
Fokuseringsfläck-sv#Sense
Brennfleck-de#Sense