Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/4821
Is Reference of Service d'aide au trafic maritime-fr#Sense
Serviço de gestão do tráfego de navios-pt#Sense
VTS-en#Sense
Sjötrafikinformationstjänst-sv#Sense
Vessel Traffic Service-en#Sense
STM-fr#Sense
VTS-sv#Sense
GTN-pt#Sense
STB-es#Sense
Servicio de Tráfico Marítimo-es#Sense