@article{DE_1990_26_6_a21,
     author = {A. F. Andreev and V. A. Andrunakievich and N. I. Vulpe and \`E. I. Grudo and V. M. Millionshchikov and L. A. Cherkas and B. A. Shcherbakov},
     title = {Konstantin {Sergeevich} {Sibirski{\v\i}}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1098--1100},
     publisher = {mathdoc},
     volume = {26},
     number = {6},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1990_26_6_a21/}
}