@inproceedings{paul1977green's,
title={Green's function for the heat equation as a limit of product integrals},
author={Paul Koosis},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203503140681288},
booktitle={Arkiv for Matematik},
volume={16},
number={1},
pages={153-159},
year={1977},
}
Paul Koosis. Green's function for the heat equation as a limit of product integrals. 1977. Vol. 16. In Arkiv for Matematik. pp.153-159. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203503140681288.