@inproceedings{wei2008comment,
title={Comment on `Cosmological Topological Massive Gravitons and Photons' },
author={Wei Li, Wei Song, and Andrew Strominger},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170228154548045237569},
booktitle={arXiv},
year={2008},
}