@inproceedings{ulf1949stochastic,
title={Stochastic processes and integral equations},
author={Ulf Grenander},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203410145209839},
booktitle={Arkiv for Matematik},
volume={1},
number={1},
pages={67-70},
year={1949},
}