TY - JOUR AU - A. Szustalewicz TI - On a variant of the matrix transformation method for approximate solution of partial differential equations of second degree JO - Applicationes Mathematicae PY - 1971 SP - 103 EP - 106 VL - 12 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/am-12-1-103-106/ DO - 10.4064/am-12-1-103-106 LA - en ID - 10_4064_am_12_1_103_106 ER -