@article{IVM_2019_5_a1,
     author = {M. B. Karmanova},
     title = {Minimal graph-surfaces on arbitrary two-step {Carnot} groups},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {15--29},
     publisher = {mathdoc},
     number = {5},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2019_5_a1/}
}