@article{IVM_1999_8_a2,
     author = {V. V. Dubrovskii and A. I. Sedov},
     title = {An estimate for the difference of spectral functions of {Gegenbauer-type} operators in the norm of $L_q$},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {20--25},
     year = {1999},
     number = {8},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1999_8_a2/}
}