%0 Journal Article
%A Sasaki, Morio
%A Tamura, Takayuki
%T Positive rational semigroups and commutative power joined cancellative semigroups without idempotent
%J Czechoslovak Mathematical Journal
%D 1971
%P 567-576
%V 21
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1971.101056/
%R 10.21136/CMJ.1971.101056
%G en
%F 10_21136_CMJ_1971_101056