Computational Processing of the Portuguese Language 7th International Workshop, PROPOR 2006, Itatiaia, Brazil, May 13-17, 2006. Proceedings - Vieira, Renata; Quaresma, Paulo; Nunes, Maria das Graças Volpe; Mamede, Nuno J.; Oliveira, Cláudia; Dias, Maria Carmelita (Springer Berlin Heidelberg, 2006)