Norsk WebDewey
type: ConceptScheme

Helium
type: Concept
notation: 546.751
broader: Edelgasser (gruppe 18)
alternative label: Helium--kjemi
created: 2010-02-04
in scheme: Norsk WebDewey
modified: 2012-09-18

Edelgasser (gruppe 18)
type: Concept
notation: 546.75
narrower: Helium