Media type: E-Article Title: The relevance of Green Building Challenge: an observer's perspective Contributor: Kohler, Niklaus Published: Informa UK Limited, 1999 Published in: Building Research & Information, 27 (1999) 4-5, Seite 309-320 Language: English DOI: 10.1080/096132199369426 ISSN: 0961-3218; 1466-4321 Origination: Footnote: