@article{MZM_1970_7_4_a4,
     author = {E. M. Nikishin},
     title = {On the set of sums of a functional series},
     journal = {Matemati\v{c}eskie zametki},
     pages = {403--410},
     publisher = {mathdoc},
     volume = {7},
     number = {4},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1970_7_4_a4/}
}