Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/3606002
Is Reference of Gas tunnel-en#Sense
Soufflerie à gaz-fr#Sense
Túnel de gás-pt#Sense
Túnel de gas-es#Sense
Gas-tunnel-da#Sense
Gastunnel-nl#Sense
Galleria a gas-it#Sense
Gaskanal-de#Sense
Σήραγγα αερίου-el#Sense