@article{DE_1990_26_2_a27,
     author = {N. P. Erugin and V. G. Demin and R. G. Mukharlyamov and V. G. Veretennikov and A. A. Shestakov and V. M. Savchin},
     title = {Abdel'khak {Safiullovich} {Galiullin} (on the occasion of his 70th birthday)},
     journal = {Differencialʹnye uravneni\^a},
     pages = {361--362},
     publisher = {mathdoc},
     volume = {26},
     number = {2},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1990_26_2_a27/}
}