Resume
This work is cataloged in the Scientific Portal. Officially published in IAENG International Journal of Applied Mathematics (2010). Referenced as: "Lopes, I.C.; de Carvalho, J.M.V.".
This work is cataloged in the Scientific Portal. Officially published in IAENG International Journal of Applied Mathematics (2010). Referenced as: "Lopes, I.C.; de Carvalho, J.M.V.".