Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/52
Is Reference of Bubble-concept-en#Sense
"boble-princip"-da#Sense
Den såkaldte "boble"-da#Sense
Stolpbeginsel-nl#Sense
Princípio da bolha-pt#Sense
Principe de la bulle-fr#Sense
Αρχή της "σφαίρας"-el#Sense
Bubbelprincipen-sv#Sense
Stolpconcept-nl#Sense
"boble-løsning"-da#Sense