@article{GDZPPN002347520,
title = {Zero-Free Intervals of Semi-Stable Markov Processes.},
journal = {Mathematica Scandinavica},
volume = {14},
year = {1964},
pages = {21-34},
zbl = {0132.12802},
url = {http://dml.mathdoc.fr/item/GDZPPN002347520}
}
Wendel, J.G. Zero-Free Intervals of Semi-Stable Markov Processes.. Mathematica Scandinavica, Tome 14 (1964) pp. 21-34. http://gdmltest.u-ga.fr/item/GDZPPN002347520/