TY - JOUR T1 - Energy spectrum and eigenfunctions through the Quantum Section Method JO - Brazilian Journal of Physics A1 - Espinoza Ortiz, J.S. A1 - Egydio de Carvalho, R. SN - 0103-9733 UL - 10.1590/S0103-97332001000400003 VL - 31 Y1 - 2001 PB - Brasil ER -