Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6621002
Is Reference of Radioaktivitet-sv#Sense
Radioaktivität-de#Sense
Radioactivity-en#Sense
Radioattività-it#Sense
Radioactiviteit-nl#Sense
Radioactividade-pt#Sense
Ραδιενέργεια-el#Sense
Radioaktiivisuus-fi#Sense
Radioaktivita-cs#Sense
Radioaktivitet-da#Sense
Radioactivité-fr#Sense
Aktivitet-sv#Sense