%0 Journal Article
%A A. A. Letichevskii
%T Functional equivalence of automata with a final state
%J Doklady Akademii Nauk
%D 1969
%P 58-60
%V 185
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1969_185_1_a14/
%G ru
%F DAN_1969_185_1_a14