%0 Journal Article
%A Jacek Dziubański
%A Andrzej Hulanicki
%T On semigroups generated by left-invariant positive differential operators on nilpotent Lie groups
%J Studia Mathematica
%D 1989
%P 81-95
%V 94
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/sm-94-1-81-95/
%R 10.4064/sm-94-1-81-95
%G en
%F 10_4064_sm_94_1_81_95