@article{VMUMM_1986_4_a13,
     author = {A. V. Kasyanchuk},
     title = {On series with random signs},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {71--74},
     year = {1986},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1986_4_a13/}
}