@article{VMUMM_1990_1_a8,
     author = {I. O. Vashkov},
     title = {Problems of time-optimal control to infinity},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {36--40},
     publisher = {mathdoc},
     number = {1},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1990_1_a8/}
}