%0 Journal Article
%A Tamura, T.
%A Merkel, R.B.
%T The number of subsemigroups of certain semigroups
%J Portugaliae mathematica
%D 1964
%P 183-191
%V 23
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PORMA_1964__23_4_114930/
%G en
%F PORMA_1964__23_4_114930