Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/3606002
Is Reference of Protactinide-fr#Sense
Protaktinide-de#Sense
Protoattinide-it#Sense
Protactinide-nl#Sense
Protaktinider-da#Sense
Protoactinide-en#Sense
Protaktinid-sv#Sense