@article{DE_2005_41_2_a3,
     author = {N. A. Izobov and E. N. Krupchik},
     title = {The {Construction} of a {Pfaff} {System} with {Arbitrary} {Piecewise} {Continuous} {Characteristic} {Power-Law} {Functions}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {177--185},
     publisher = {mathdoc},
     volume = {41},
     number = {2},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2005_41_2_a3/}
}