Essaïd Bilal, J. Cesar -Mendes, J.M Correia Neves, Mohamed Nasraoui, Kazuo Fuzikawa. Chemistry of tourmalines in some pegmatites of São José da Safira area, Minas Gerais, Brazil.
Journal of the Czech Geological Society, 1998, 43 (1-2), pp.33-38.
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