%0 Journal Article %A A. Szustalewicz %T On a variant of the matrix transformation method for approximate solution of partial differential equations of second degree %J Applicationes Mathematicae %D 1971 %P 103-106 %V 12 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am-12-1-103-106/ %R 10.4064/am-12-1-103-106 %G en %F 10_4064_am_12_1_103_106