@article{DE_1984_20_5_a0,
     author = {\`E. I. Grudo},
     title = {Construction of {Lyapunov} functions as $m$th order forms},
     journal = {Differencialʹnye uravneni\^a},
     pages = {739--745},
     publisher = {mathdoc},
     volume = {20},
     number = {5},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1984_20_5_a0/}
}