@article{INTO_2019_170_a2,
     author = {M. V. Polovinkina and I. P. Polovinkin},
     title = {On properties of {Riemannian} metrics associated with $B$-elliptic operators},
     journal = {Itogi nauki i tehniki. Sovremenna\^a matematika i e\"e prilo\v{z}eni\^a. Temati\v{c}eskie obzory},
     pages = {31--37},
     publisher = {mathdoc},
     volume = {170},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTO_2019_170_a2/}
}