@article{MZM_1993_54_6_a0,
     author = {N. A. Bokaev and M. A. Nurkhanov},
     title = {Example of a null-series with respect to periodic multiplicative systems},
     journal = {Matemati\v{c}eskie zametki},
     pages = {3--9},
     publisher = {mathdoc},
     volume = {54},
     number = {6},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1993_54_6_a0/}
}