@article{IVM_1965_5_a17,
     author = {A. H. Turetzkii},
     title = {On a class of functions for which the given method of summation provides an approximation of the order of the best one},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {132--139},
     publisher = {mathdoc},
     number = {5},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1965_5_a17/}
}