@article{RM_1975_30_4_a23,
     author = {V. I. Arnol'd and A. A. Kirillov and V. M. Tikhomirov and M. A. Shubin},
     title = {On {First} {All-Union} {Mathematical} {Competition} for {Students}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     year = {1975},
     volume = {30},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1975_30_4_a23/}
}