@inproceedings{thomas1973a,
title={A refined saddle point approximation},
author={Thomas Höglund},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203453737513207},
booktitle={Arkiv for Matematik},
volume={12},
number={1},
pages={173-180},
year={1973},
}