@article{DE_1971_7_8_a1,
     author = {\`E. I. Grudo},
     title = {Expansion of the solutions of a certain autonomous system in a certain singular stability case},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1357--1367},
     publisher = {mathdoc},
     volume = {7},
     number = {8},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1971_7_8_a1/}
}