@inproceedings{l.1972$c$^{*}-algebras,
title={$C$^{*}-algebras of almost periodic pseudo-differential operators},
author={L. A. Coburn, R. D. Moyer, and I. M. Singer},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203228584289149},
booktitle={Acta Mathematica},
volume={130},
number={1},
pages={279-307},
year={1972},
}
L. A. Coburn, R. D. Moyer, and I. M. Singer. $C$^{*}-algebras of almost periodic pseudo-differential operators. 1972. Vol. 130. In Acta Mathematica. pp.279-307. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203228584289149.