%0 Journal Article
%A A. N. Degtev
%T Several remarks on retraceable, regressive and pointwise
%J Algebra i logika
%D 1970
%P 651-660
%V 9
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_1970_9_6_a3/
%G ru
%F AL_1970_9_6_a3