@inproceedings{sorin1992classification,
title={Classification of amenable subfactors of type II},
author={Sorin Popa},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203322150965497},
booktitle={Acta Mathematica},
volume={172},
number={2},
pages={163-255},
year={1992},
}