Hydrogen
type: Concept
created: 2010-02-04
modified: 2012-10-24
alternative label: Hydrogen--økonomisk geologi
broader: Uorganiske gasser
in scheme: Norsk WebDewey
notation: 553.92

Uorganiske gasser
type: Concept
narrower: Hydrogen
notation: 553.9

Norsk WebDewey
type: ConceptScheme