@inproceedings{torbjörn1967on,
title={On stochastic stationarity of renewal processes},
author={Torbjörn Thedéen},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203439313625085},
booktitle={Arkiv for Matematik},
volume={7},
number={3},
pages={249-263},
year={1967},
}