@article{IVM_1989_7_a9,
     author = {G. P. Emgusheva and V. A. Nogin},
     title = {Characterization of functions in anisotropic classes of {Liouville} type},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {63--66},
     publisher = {mathdoc},
     number = {7},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1989_7_a9/}
}