%0 Journal Article
%A S. Sirota
%T On the problem of the classification of filters
%J Doklady Akademii Nauk
%D 1970
%P 533-536
%V 191
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1970_191_3_a8/
%G ru
%F DAN_1970_191_3_a8