Norsk WebDewey
type: ConceptScheme

Nitrogenfiksering
notation: 572.545
broader: Nitrogen
alternative label: Nitrifisering
created: 2010-02-04
in scheme: Norsk WebDewey
type: Concept
modified: 2012-11-16

Nitrogen
notation: 572.54
type: Concept
narrower: Nitrogenfiksering