%0 Journal Article
%A I. V. Ostrovskii
%T A certain class of characteristic functions
%J Informatics and Automation
%D 1970
%P 195-207
%V 111
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TRSPY_1970_111_a8/
%G ru
%F TRSPY_1970_111_a8