@inproceedings{mikael2001a,
title={A simple$C$^{*}-algebra with a finite and an infinite projection},
author={Mikael Rørdam},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203342490628639},
booktitle={Acta Mathematica},
volume={191},
number={1},
pages={109-142},
year={2001},
}