Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/3606
Is Reference of Langlevend radioisotoop-nl#Sense
Radioisotope à longue vie-fr#Sense
Langlebiges Radioisotop-de#Sense
Long-lived radioisotope-en#Sense
Radioisotop med lang levetid-da#Sense
Radioisotope à longue période-fr#Sense
Långlivad radionnuklid-sv#Sense
Radioisotopo a lungo periodo radioattivo-it#Sense