Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6616
Is Reference of Poraustorni-fi#Sense
Bohrturm-de#Sense
Tour de forage-fr#Sense
Boring tower-en#Sense
Borrtorn-sv#Sense
Boretårn-da#Sense
Torre di trivellazione-it#Sense
Πύργος γεωτρήσεως-el#Sense
Torre de perforación-es#Sense
Boortoren-nl#Sense