Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6831
Is Reference of Hålmur-sv#Sense
Hohlwand-de#Sense
Hulvæg-da#Sense
Kuorimuuriseinä-fi#Sense
Cavity wall-en#Sense
Κοιλότοιχος-el#Sense
Spouwwand-nl#Sense
Holle wand-nl#Sense
Hålvägg-sv#Sense
Rakoseinä-fi#Sense
Paroi creuse-fr#Sense
Parete forata-it#Sense
Pared hueca-es#Sense