@article{INTM_1974_12_a0,
     author = {G. F. Kangro},
     title = {Theory of summability of sequences and series},
     journal = {Itogi nauki i tehniki. Seri\^a, Matemati\v{c}eskij analiz},
     pages = {5--70},
     publisher = {mathdoc},
     volume = {12},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTM_1974_12_a0/}
}