@article{DE_1995_31_7_a0,
     author = {V. A. Il'in and L. D. Kudryavtsev and Yu. S. Osipov and S. I. Pokhozhaev},
     title = {Ol'ga {Arsen'evna} {Ole{\v\i}nik} (on the occasion of her seventieth birthday)},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1107--1122},
     publisher = {mathdoc},
     volume = {31},
     number = {7},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1995_31_7_a0/}
}