@article{ZVMMF_2013_53_8_a1,
     author = {V. A. Abilov and M. V. Abilov and M. K. Kerimov},
     title = {Convergence rate estimates for {\textquotedblleft}spherical{\textquotedblright} partial sums of double {Fourier} series},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1233--1240},
     year = {2013},
     volume = {53},
     number = {8},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2013_53_8_a1/}
}