@article{IVM_1960_5_a8,
     author = {I. B. Kaplan},
     title = {Ces\`aro means of variable order},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {62--73},
     publisher = {mathdoc},
     number = {5},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1960_5_a8/}
}