Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Kohlenstaub-de#Sense
Kivihiilipöly-fi#Sense
Stenkolspulver-sv#Sense
Hiilipöly-fi#Sense
Negro mineral-pt#Sense
Kulmel-da#Sense
Steinkohlenstaub-de#Sense
Coaldust-en#Sense
Seacoal-en#Sense
Noir minéral-fr#Sense
Negro mineral-es#Sense
Γαιάνθρακας σε σκόνη-el#Sense
Steenkoolpoeder-nl#Sense
Nero minerale-it#Sense