@inproceedings{felix2006decay,
title={Decay of solutions of the wave equation in the Kerr geometry},
author={Felix Finster, Niky Kamran, Joel Smoller, and Shing-Tung Yau},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224203644260670067},
booktitle={Communications in Mathematical Physics},
volume={264},
number={2},
pages={465-503},
year={2006},
}

Felix Finster, Niky Kamran, Joel Smoller, and Shing-Tung Yau. Decay of solutions of the wave equation in the Kerr geometry. 2006. Vol. 264. In Communications in Mathematical Physics. pp.465-503. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224203644260670067.