%0 Journal Article
%A A. Janssen
%T A general purity law for convolution semigroups with discrete Levy measure.
%J Semigroup forum
%D 1980
%P 55-72
%V 20
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1980__20_134403/
%F SF_1980__20_134403