@inproceedings{per1966the,
title={The microubundle representation theorem},
author={Per Holm},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203210641912026},
booktitle={Acta Mathematica},
volume={117},
number={1},
pages={191-213},
year={1966},
}