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van der Sleen, Peter, Mart Vlam, Peter Groenendijk, Niels P. R. Anten, Frans Bongers, Sarayudh Bunyavejchewin, Peter Hietz, Thijs L. Pons, a Pieter A. Zuidema. "(15)N in Tree Rings As a Bio-indicator of Changing Nitrogen Cycling in Tropical Forests: An Evaluation At Three Sites Using Two Sampling Methods." Front Plant Sci 2015.

van der Sleen, Peter, et al. "(15)N in Tree Rings As a Bio-indicator of Changing Nitrogen Cycling in Tropical Forests: An Evaluation At Three Sites Using Two Sampling Methods." Front Plant Sci 2015.