@article{ZVMMF_1990_30_8_a3,
     author = {M. M. Potapov and A. V. Razgulin},
     title = {Difference methods in problems of the optimal control of the stationary self-action of light beams},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1157--1169},
     publisher = {mathdoc},
     volume = {30},
     number = {8},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1990_30_8_a3/}
}