%0 Journal Article
%A Victoria Knopova
%T Semigroups generated by certain
 pseudo-differential operators on the half-space ${\Bbb R}_{0+}^{n+1}$
%J Colloquium Mathematicum
%D 2004
%P 221-236
%V 101
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/cm101-2-6/
%R 10.4064/cm101-2-6
%G en
%F 10_4064_cm101_2_6