@article{DAN_1991_316_4_a16,
     author = {A. P. Krishchenko and A. N. Nazarenko},
     title = {Computational aspects of the differential-geometric approach to},
     journal = {Doklady Akademii Nauk},
     pages = {838--842},
     year = {1991},
     volume = {316},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_316_4_a16/}
}