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By: Chiron, Vitorino P Castro Neto Guy R - Guiard, Josiane - Castro Neto, Vitorino Paiva.Type: ArticleIn: RichardianaVolume: 3Series:Issue: 2Date: 2003-04Page Range: 74--89Publication Info: Saint-Genis-Laval [France], Tropicalia, 2001-Subjects: