@inproceedings{alexander2013mixing,
title={Mixing properties of commuting nilmanifold automorphisms},
author={Alexander Gorodnik, and Ralf Spatzier},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203405437689806},
booktitle={Acta Mathematica},
volume={215},
number={1},
pages={127-159},
year={2013},
}
Alexander Gorodnik, and Ralf Spatzier. Mixing properties of commuting nilmanifold automorphisms. 2013. Vol. 215. In Acta Mathematica. pp.127-159. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203405437689806.