TY - JOUR AU - M. B. Karmanova TI - Space-likeness of classes of level surfaces on Carnot groups and their metric properties JO - Doklady Rossijskoj akademii nauk. Matematika, informatika, processy upravleniâ PY - 2020 SP - 38 EP - 42 VL - 492 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DANMA_2020_492_a7/ LA - ru ID - DANMA_2020_492_a7 ER -