Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Caja negra-es#Sense
Black Box-de#Sense
"schwarzer kasten"-de#Sense
Black box-sv#Sense
Musta laatikko-fi#Sense
Black box-en#Sense
Μαύρο κιβώτιο-el#Sense
Zwarte doos-nl#Sense
Black box-fr#Sense
Μαύρο κουτί-el#Sense
Black-box-da#Sense
Boîte noire-fr#Sense
Scatola nera-it#Sense