@article{DANMA_2020_492_a7, author = {M. B. Karmanova}, title = {Space-likeness of classes of level surfaces on {Carnot} groups and their metric properties}, journal = {Doklady Rossijskoj akademii nauk. Matematika, informatika, processy upravleni\^a}, pages = {38--42}, publisher = {mathdoc}, volume = {492}, year = {2020}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DANMA_2020_492_a7/} }