@article{ZVMMF_2002_42_7_a5,
     author = {N. V. Balashevich and R. Gabasov and A. I. Kalinin and F. M. Kirillova},
     title = {Optimal control of nonlinear systems},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {969--995},
     publisher = {mathdoc},
     volume = {42},
     number = {7},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2002_42_7_a5/}
}