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Robert G. M. Hofstede, Arnout J. G. A. Rossenaar, Biomass of Grazed, Burned, and Undisturbed Páramo Grasslands, Colombia. II. Root Mass and Aboveground:Belowground Ratio, Arctic and Alpine Research, Vol. 27, No. 1 (Feb., 1995), pp. 13-18
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Hofstede et al. (1995) studied this question.
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