@article{VMUMM_1992_5_a13,
     author = {V. V. Kozlov and A. Yu. Khmelevskaya},
     title = {On impulse isoenergetic control},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {69--71},
     publisher = {mathdoc},
     number = {5},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1992_5_a13/}
}