@article{ZVMMF_1988_28_2_a0,
     author = {B. Sh. Mordukhovich},
     title = {An approximate maximum principle for finite-difference control systems},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {163--177},
     year = {1988},
     volume = {28},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1988_28_2_a0/}
}