@article{IVM_1970_7_a5,
     author = {G. P. Gubanov},
     title = {The approximation of functions of class $Z(\alpha,\beta)$ by positive methods of summation of {Fourier} series},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {50--56},
     publisher = {mathdoc},
     number = {7},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1970_7_a5/}
}