@article{ZVMMF_2016_56_10_a1,
     author = {E. R. Avakov and V. G. Oleinikov},
     title = {Irregular trajectories in vakonomic mechanical systems},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1702--1710},
     publisher = {mathdoc},
     volume = {56},
     number = {10},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2016_56_10_a1/}
}