Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Grubenvermessung-de#Sense
Kaivosmittaus-fi#Sense
Υπόγεια αποτύπωση-el#Sense
Levantamento da mina-pt#Sense
Ondergrondse metingen,mijnmetingen-nl#Sense
Gruvmätning under jord-sv#Sense
Relevé minier-fr#Sense
Underground survey-en#Sense