Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6811
Is Reference of Polyacrylnitril-de#Sense
PAL-de#Sense
PAN-en#Sense
Polyacrylonitrile-fr#Sense
PAN-fr#Sense
PAN-de#Sense
Polyacrylonitrile-en#Sense