@article{RM_1989_44_4_a15,
     author = {O. A. Oleinik and M. A. Shubin},
     title = {Second {International} conference of graduate students of {Moscow} {State} {University}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     year = {1989},
     volume = {44},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1989_44_4_a15/}
}