@article{GDZPPN001253999,
title = {A general purity law for convolution semigroups with discrete Levy measure.},
journal = {Semigroup forum},
volume = {20},
year = {1980},
pages = {55-72},
zbl = {0442.60015},
url = {http://dml.mathdoc.fr/item/GDZPPN001253999}
}
Janssen, A. A general purity law for convolution semigroups with discrete Levy measure.. Semigroup forum, Tome 20 (1980) pp. 55-72. http://gdmltest.u-ga.fr/item/GDZPPN001253999/