%0 Journal Article %A N. A. Izobov %A E. N. Krupchik %T The Construction of a Pfaff System with Arbitrary Piecewise Continuous Characteristic Power-Law Functions %J Differencialʹnye uravneniâ %D 2005 %P 177-185 %V 41 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2005_41_2_a3/ %G ru %F DE_2005_41_2_a3