@article{IVM_2016_5_a7,
     author = {V. A. Srochko and V. G. Antonik},
     title = {Optimality conditions for extremal controls in bilinear and quadratic problems},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {86--92},
     publisher = {mathdoc},
     number = {5},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2016_5_a7/}
}