Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Boorgat-nl#Sense
Spränghål-sv#Sense
Mijngat-nl#Sense
Fourneaux et trous de mines-fr#Sense
Mine-chambers-en#Sense
Borehuller-da#Sense
Bohrlöcher-de#Sense
Fornilho-pt#Sense
Furo de mina-pt#Sense
Minekamre-da#Sense
Panosreikä-fi#Sense
Θάλαμοι ορυχείου-el#Sense
Minenkammern-de#Sense