Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Σύστημα αεροναυτιλίας με ραδιοδίκτυο-el#Sense
Sistema de navegação radiomalha-pt#Sense
Sistema de navegación radiomallas-es#Sense
Radio-mesh navigation system-en#Sense
Sistema di navigazione a maglie-it#Sense
Système de navigation radio-mailles-fr#Sense
Radionavigatiesysteem-nl#Sense
Funkgitter-Navigationssystem-de#Sense