@inproceedings{mats2008a,
title={A residue criterion for strong holomorphicity},
author={Mats Andersson},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203625798181965},
booktitle={Arkiv for Matematik},
volume={48},
number={1},
pages={1-15},
year={2008},
}