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W. D. Billings, K. M. Peterson, G. R. Shaver, A. W. Trent, Root Growth, Respiration, and Carbon Dioxide Evolution in an Arctic Tundra Soil, Arctic and Alpine Research, Vol. 9, No. 2 (May, 1977), pp. 129-137
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Billings et al. (1977) studied this question.
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