@article{DE_1978_14_5_a27,
     author = {A. V. Bitsadze and V. S. Vladimirov and N. P. Erugin and S. M. Nikol'skii and A. A. Samarskii and A. N. Tikhonov},
     title = {Vladimir {Aleksandrovi{\v{c}}} {Il'in} (on the occasion of his fiftieth birthday)},
     journal = {Differencialʹnye uravneni\^a},
     pages = {947--954},
     publisher = {mathdoc},
     volume = {14},
     number = {5},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1978_14_5_a27/}
}