%0 Journal Article %A M. K. Bugir %T The decomposition of G. Pólya and G. Mammana for a system of equations %J Differencialʹnye uravneniâ %D 1972 %P 529-530 %V 8 %N 3 %U http://geodesic.mathdoc.fr/item/DE_1972_8_3_a14/ %G ru %F DE_1972_8_3_a14