Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6811
Is Reference of Polyaethylen-de#Sense
Polyéthylène-fr#Sense
Polietilenica-it#Sense
Polyethylene-en#Sense
Polyéthène-fr#Sense
Polyethene-en#Sense
Polietilene-it#Sense
Polietileno-es#Sense
Polytheen-nl#Sense
Polyethylen-da#Sense
Polyethyleen-nl#Sense
Polyetheen-nl#Sense