@article{MZM_2022_111_1_a13,
     author = {M. B. Karmanova},
     title = {On the {Approximability} and {Parametrization} of {Preimages} of {Elements} of {Carnot} {Groups} on {Sub-Lorentzian} {Structures}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {140--144},
     publisher = {mathdoc},
     volume = {111},
     number = {1},
     year = {2022},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2022_111_1_a13/}
}