@misc{TM_1990_192_a0,
     title = {In memory of {Sergei} {L'vovich} {Sobolev}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {3--4},
     publisher = {mathdoc},
     volume = {192},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1990_192_a0/}
}