%0 Journal Article
%A S. S. Marchenkov
%T Existence of superposition bases in countable primitive-recursively closed classes of one-place functions
%J Matematičeskie zametki
%D 1980
%P 877-883
%V 27
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1980_27_6_a4/
%G ru
%F MZM_1980_27_6_a4