@article{DE_1997_33_1_a0,
     author = {V. A. Il'in and N. A. Izobov and A. A. Martynyuk and A. M. Samoilenko},
     title = {Yuriǐ {Alekseevich} {Mitropol'skiǐ} (on the occasion of his eightieth birthday)},
     journal = {Differencialʹnye uravneni\^a},
     pages = {3--5},
     year = {1997},
     volume = {33},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1997_33_1_a0/}
}