%0 Journal Article
%A W. Mlak
%T On semi-groups of contractions in Hilbert spaces
%J Studia Mathematica
%D 1965
%P 263-272
%V 26
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/sm-26-3-263-272/
%R 10.4064/sm-26-3-263-272
%G en
%F 10_4064_sm_26_3_263_272