Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Ενεργός ασβεστόλιθος-el#Sense
Calcário ativo -pt#Sense
Kalkstein-de#Sense
Aolchloch ghníomhach-ga#Sense
Kalkholdende jord-da#Sense
Carbonatgestein-de#Sense
Calcare attivo-it#Sense
Calcaire actif-fr#Sense
Grond met hoog gehalte aan calciumcarbonaat-nl#Sense