@misc{FPM_2001_7_1_a21,
     title = {Sessions of the seminar {{\textquotedblleft}Actual} problems of geometry and mechanics{\textquotedblright}},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {301--316},
     year = {2001},
     volume = {7},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2001_7_1_a21/}
}