Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/52
Is Reference of Perfluorocarbons-en#Sense
PFC-pl#Sense
Per-Fluoro-Carbons-en#Sense
Perfluor Kohlenwasserstoffe-de#Sense
Perfluorowęglowodory-pl#Sense
PFC-en#Sense
Perfluorkohlenwasserstoffe-de#Sense