@article{ZVMMF_1973_13_3_a3,
     author = {S. M. Ermakov},
     title = {The analogue of the {Neumann{\textendash}Ulam} scheme in the nonlinear case},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {564--573},
     publisher = {mathdoc},
     volume = {13},
     number = {3},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1973_13_3_a3/}
}