@article{CC_2009_38_4B_a13,
     author = {Osmolovskii, Nikolai P.},
     title = {Second order conditions in optimal control problems with mixed equality-type constraints on a variable time interval},
     journal = {Control and Cybernetics},
     pages = {1535--1556},
     publisher = {mathdoc},
     volume = {38},
     number = {4B},
     year = {2009},
     zbl = {1236.49055},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CC_2009_38_4B_a13/}
}