%0 Journal Article %A T. P. Lukashenko %T On properties of generalized expansion systems that are similar to orthogonal systems %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2000 %P 33-48 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2000_10_a3/ %G ru %F IVM_2000_10_a3