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Brian J. Enquist, James J. Ebersole, Effects of Added Water on Photosynthesis of Bistorta vivipara: The Importance of Water Relations and Leaf Nitrogen in Two Alpine Communities, Pikes Peak, Colorado, U.S.A., Arctic and Alpine Research, Vol. 26, No. 1 (Feb., 1994), pp. 29-34
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Enquist et al. (1994) studied this question.
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