@inproceedings{k.1960almost, title={Almost periodic functions on semigroups}, author={K. Deleeuw, and I. Glicksberg}, url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203156457181917}, booktitle={Acta Mathematica}, volume={105}, number={1}, pages={99-140}, year={1960}, }