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2by Ferreira,Maria Cristina, Assmar,Eveline Maria Leal, Omar,Alicia Graciela, Uribe Delgado,Hugo, Terrones González,Alberto, Silva,Jorge Manuel Beltrán, Souza,Marcos Aguiar de, Cisne,Maria do Carmo de Figueiredo
Published 2002Digital revistaSCIELO