Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Percée aux instruments-fr#Sense
Daalvlucht op instrumenten-nl#Sense
Descenso ILS-es#Sense
Κάθοδος δι'οργάνων-el#Sense
Mittarilasku-fi#Sense
Discesa strumentale-it#Sense
Avvicinamento strumentale-it#Sense
Penetração-descida por instrumentos-pt#Sense
Instrumentendurchstoßverfahren-de#Sense
Instrumentinflygning-sv#Sense
Instrument let-down-en#Sense
Descenso instrumental-es#Sense
Κάθοδος με όργανα-el#Sense
Descenso por instrumentos-es#Sense