@article{MZM_2017_102_6_a15,
     author = {D. V. Isangulova},
     title = {A {Vector} {Field} {Potentiality} {Criterion} in {Sub-Riemannian} {Geometry}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {949--954},
     publisher = {mathdoc},
     volume = {102},
     number = {6},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2017_102_6_a15/}
}