@inproceedings{irwin1970on,
title={On cohomology of Kleinian groups},
author={Irwin Kra},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203222651054116},
booktitle={Acta Mathematica},
volume={127},
number={1},
pages={23-40},
year={1970},
}