%0 Journal Article %A S. S. Volosivets %T The weighted $L^1$-integrability of functions and the Parseval equality with respect to multiplicative systems %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2012 %P 15-26 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2012_8_a1/ %G ru %F IVM_2012_8_a1