Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/4806
Is Reference of Mancata collisione in volo-it#Sense
Bijna-botsing in de lucht-nl#Sense
NMAC-en#Sense
Quasi-abordage en vol-fr#Sense
Near mid-air collision-en#Sense
Cuasicolisón en vuelo-es#Sense