@article{TIMM_2018_24_1_a7,
     author = {A. V. Dmitruk and N. P. Osmolovskii},
     title = {Variations of the $v$-change of time in problems with state constraints},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {76--92},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2018_24_1_a7/}
}