Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/52
Is Reference of Υπόγεια ύδατα-el#Sense
Régime des eaux souterraines-fr#Sense
Groundwater regime-en#Sense
Grundvandsforhold-da#Sense
Pohjavesiolosuhteet-fi#Sense
Pohjavesikerros-fi#Sense
Grundvandsregime-da#Sense