@inproceedings{bayard1958computable,
title={Computable probability spaces},
author={Bayard Rankin},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203153989937900},
booktitle={Acta Mathematica},
volume={103},
number={1},
pages={89-122},
year={1958},
}