%0 Journal Article %A N. A. Sidorov %T Sum-of-digits function for certain non-stationary bases %J Zapiski Nauchnykh Seminarov POMI %D 1997 %P 257-267 %V 240 %U http://geodesic.mathdoc.fr/item/ZNSL_1997_240_a15/ %G ru %F ZNSL_1997_240_a15