@inproceedings{y.1989the,
title={The structure of the automorphism group of an injective factor and the cocycle conjugacy of discrete abelian group actions},
author={Y. Kawahigashi, C. E. Sutherland, and M. Takesaki},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203318498749473},
booktitle={Acta Mathematica},
volume={169},
number={1},
pages={105-130},
year={1989},
}
Y. Kawahigashi, C. E. Sutherland, and M. Takesaki. The structure of the automorphism group of an injective factor and the cocycle conjugacy of discrete abelian group actions. 1989. Vol. 169. In Acta Mathematica. pp.105-130. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203318498749473.