@article{DE_1982_18_2_a26,
     author = {A. A. Il'yushin and M. Imanaliev and N. M. Matveev and Yu. A. Mitropol'skii},
     title = {Aleksandr {Nikolaevich} {Filatov} (on the occasion of his fiftieth birthday)},
     journal = {Differencialʹnye uravneni\^a},
     pages = {360--362},
     publisher = {mathdoc},
     volume = {18},
     number = {2},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1982_18_2_a26/}
}