@inproceedings{narutaka2003solid,
title={Solid von Neumann algebras},
author={Narutaka Ozawa},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203344335478648},
booktitle={Acta Mathematica},
volume={192},
number={1},
pages={111-117},
year={2003},
}