@article{SJIM_2011_14_1_a9,
     author = {S. P. Sorokin},
     title = {Sufficient optimality conditions in the form of the {Pontryagin} maximum principle in control problems for hybrid systems},
     journal = {Sibirskij \v{z}urnal industrialʹnoj matematiki},
     pages = {102--113},
     publisher = {mathdoc},
     volume = {14},
     number = {1},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SJIM_2011_14_1_a9/}
}