Welker, J M Leaf carbon isotope discrimination and vegetative responses of Dryas octopetala to temperature and water manipulations in a High Arctic polar semi-desert, Svalbard. [electronic resource] - Oecologia Oct 1993 - 463-469 p. digital Publication Type: Journal Article ISSN: 1432-1939 Standard No.: 10.1007/BF00317428 doi