Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Polymer electrolyte membrane fuel cell-en#Sense
Protoninvaihtokalvopolttokenno-fi#Sense
Proton exchange membrane fuel cell-en#Sense
PEMFC-en#Sense
PEM-polttokenno-fi#Sense