@article{IVM_1981_8_a20,
     author = {E. U. Yasinskaya},
     title = {On the theory of $m$-surfaces in $r$-quasielliptic and $r$-quasihyperbolic $n$-spaces},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {86--87},
     publisher = {mathdoc},
     number = {8},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1981_8_a20/}
}