@article{DE_1985_21_2_a0,
     author = {N. E. Bol'shakov and P. P. Potapenko},
     title = {A criterion for asymptotic stability of {Pfaffian} differential systems with $g$-perturbations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {187--191},
     publisher = {mathdoc},
     volume = {21},
     number = {2},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1985_21_2_a0/}
}