Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/36
Is Reference of Géométrie ouverte-fr#Sense
Open geometrie-nl#Sense
Öppen geometri-sv#Sense
Open geometry-en#Sense
Offene Geometrie-de#Sense
Åben geometri-da#Sense
Geometria aperta-it#Sense