Green, Janis M The subdominant status of Echinocereus viridiflorus and Mammillaria vivipara in the shortgrass prairie: The role of temperature and water effects on gas exchange. [electronic resource] - Oecologia Jan 1982 - 43-48 p. digital Publication Type: Journal Article ISSN: 1432-1939 Standard No.: 10.1007/BF00349010 doi