@article{DE_1998_34_10_a0,
     author = {N. A. Izobov and V. A. Il'in and A. S. Kalashnikov and V. A. Kondratiev and V. M. Millionshchikov and O. A. Oleinik and N. Kh. Rozov},
     title = {Alekseǐ {Fedorovich} {Filippov} (on the occasion of his 75th anniversary)},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1299--1303},
     year = {1998},
     volume = {34},
     number = {10},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1998_34_10_a0/}
}