@article{DA_1984_25_a6,
     author = {A. A. Kolokolov and E. V. Tsepkova},
     title = {Upper bound on the number of regular truncations for a family of problems on a cone},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {75--79},
     publisher = {mathdoc},
     number = {25},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_1984_25_a6/}
}