%0 Journal Article
%A Schwarz, Štefan
%T On semigroups having a kernel
%J Czechoslovak Mathematical Journal
%D 1951
%P 229-264
%V 1
%N 4
%U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1951.100031/
%R 10.21136/CMJ.1951.100031
%G en
%F 10_21136_CMJ_1951_100031