Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Internal scour-en#Sense
Erosión interna-es#Sense
Erosione interna-it#Sense
Érosion interne-fr#Sense
Erosão interna-pt#Sense
Innere Abscheuerung-de#Sense