Conference paper (2004) - L Paula (author), F Birrer (author), JABAF Bonnet (author), GJ van Hasselt (author), S.M. Lemkowitz (author), SM Lemkowitz (author), S. M. Lemkowitz (author), Saul Lemkowitz (author), Patricia Osseweijer (author), P. Osseweijer (author), Patrícia Osseweijer (author), P Osseweijer (author)