%0 Journal Article
%A S. S. Marchenkov
%T Finite initial segments of the upper semilattice of finite-automaton degrees
%J Diskretnaya Matematika
%D 1989
%P 96-103
%V 1
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DM_1989_1_3_a9/
%G ru
%F DM_1989_1_3_a9