@article{ZVMMF_1968_8_1_a17,
     author = {\`E. G. Davydov},
     title = {Pontrjagin's maximum principle for processes with smoothly varying control regions},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {190--195},
     publisher = {mathdoc},
     volume = {8},
     number = {1},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1968_8_1_a17/}
}