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L. D. Lacerda, C. E. V. Carvalho, K. F. Tanizaki, A. R. C. Ovalle, C. E. Rezende, The Biogeochemistry and Trace Metals Distribution of Mangrove Rhizospheres, Biotropica, Vol. 25, No. 3 (Sep., 1993), pp. 252-257
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Lacerda et al. (1993) studied this question.
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