@article{DE_1979_15_10_a16,
     author = {\`E. I. Grudo and L. F. Yanchuk},
     title = {On the asymptotic stability of the equilibrium state of {Pfaff} systems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1891--1893},
     publisher = {mathdoc},
     volume = {15},
     number = {10},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1979_15_10_a16/}
}