Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/10
Is Reference of Arbeitsgruppe " Blei und Bleiverbindungen "-de#Sense
Gruppo di lavoro " Piombo e composti di piombo "-it#Sense
Groupe de travail " Plomb et ses composés "-fr#Sense
Working Party on Lead and Lead Compounds-en#Sense
Arbejdsgruppe vedrørende Bly og Blyforbindelser-da#Sense
Werkgroep Lood en loodverbindingen-nl#Sense