Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Visierlinie-de#Sense
Line of sight-en#Sense
Visierachse-de#Sense
Tähtäyslinja-fi#Sense
Ligne de visée-fr#Sense
Sight axis-en#Sense
Fluchtlinie-de#Sense
Siktlinje-sv#Sense
Línea de mira-es#Sense