Linguistic issues in the development of ReGra: A grammar checker for Brazilian Portuguese. - Ronaldo Teixeira Martins; Ricardo Hasegawa; Maria das Graças Volpe Nunes; Gisele Montilha; Osvaldo Novais de Oliveira (Nat. Lang. Eng., 1998)

DIADORIM - A Lexical Database for Brazilian Portuguese. - Juliana Galvani Greghi; Ronaldo Teixeira Martins; Maria das Graças Volpe Nunes (LREC, 2002)

Curupira: A Functional Parser for Brazilian Portuguese. - Ronaldo Teixeira Martins; Graça Nunes; Ricardo Hasegawa (PROPOR, 2003)