@article{DAN_1975_225_2_a3,
     author = {N. P. Osmolovskii},
     title = {Second-order conditions for a weak local minimum in an optimal control problem (necessity, sufficiency)},
     journal = {Doklady Akademii Nauk},
     pages = {259--262},
     publisher = {mathdoc},
     volume = {225},
     number = {2},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_225_2_a3/}
}