@article{DANMA_2020_491_a11,
     author = {M. B. Karmanova},
     title = {Coarea formula for functions on 2-step {Carnot} groups with {sub-Lorentzian} structure},
     journal = {Doklady Rossijskoj akademii nauk. Matematika, informatika, processy upravleni\^a},
     pages = {61--64},
     publisher = {mathdoc},
     volume = {491},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DANMA_2020_491_a11/}
}