Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Commuter-en#Sense
Frontier worker-en#Sense
Travailleur frontalier-fr#Sense
Grenzarbeiter-de#Sense
Frontalier-fr#Sense
Grensganger-nl#Sense
Grenspendelaar-nl#Sense
Grenzgänger-de#Sense
Grensarbeider-nl#Sense
Grenzpendler-de#Sense