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Grethel Milián
Universidad de Matanzas. Autopista Varadero km 3 ½. Matanzas, Cuba
Cuba
Ana J. Rondón
Universidad de Matanzas. Autopista Varadero km 3 ½. Matanzas, Cuba
Cuba
Marlén Rodríguez
Universidad de Matanzas. Autopista Varadero km 3 ½. Matanzas, Cuba
Cuba
A. Beruvides
Universidad de Matanzas. Autopista Varadero km 3 ½. Matanzas, Cuba
Cuba
M. L. Pérez
Universidad Estatal Amazónica. Departamento de Ciencias de la Tierra. km 2 ½. Vía a Tena (Paso Lateral). Puyo, Pastaza, Ecuador
Ecuador
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