Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Pressure of earth-en#Sense
Poussée des terres-fr#Sense
Earth pressure-en#Sense
Gronddruk-nl#Sense
Ώθηση γαιών-el#Sense
Spinta delle terre-it#Sense
Erddruck-de#Sense
Empuje de tierras-es#Sense
Jordtryk-da#Sense