Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6831
Is Reference of Zandvoerende wel-nl#Sense
Inre erosion-sv#Sense
Piping-en#Sense
Piping-nl#Sense
Renard-fr#Sense
Διασωλήνωση-el#Sense
Erosao interna-pt#Sense
Renard-es#Sense
Erosionsbrud ved gennemsivning-da#Sense
Tubificación-es#Sense
Sickerroehrenbildung-de#Sense
Sifonamento-it#Sense
Sifonamiento-es#Sense
Sisäinen eroosio-fi#Sense
Vuotokanavien muodostuminen-fi#Sense