TY - JOUR AU - Martins, Patrick Thomaz de Aquino AU - Araujo, Márcia Regina Soares de PY - 2009 TI - Theses and Dissertations JF - Mercator; Vol 8 No 15 (2009): jan./abr. KW - N2 - UR - http://www.mercator.ufc.br/mercator/article/view/288