@inproceedings{e.1982$k$-theory, title={$K$-theory for certain group$C$^{*}-algebras}, author={E. Christopher Lance}, url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203300163191341}, booktitle={Acta Mathematica}, volume={151}, number={1}, pages={209-230}, year={1982}, }