@article{IVM_1988_8_a7,
     author = {K. B. Baǐkuziev},
     title = {Estimates for the eigenfunctions of degenerate operators},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {79--82},
     year = {1988},
     number = {8},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1988_8_a7/}
}