@inproceedings{mark2009conical,
title={Conical diffraction in honeycomb lattices},
author={Mark J. Ablowitz, Sean D. Nixon, and Yi Zhu},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20220428162144585545160},
booktitle={Physical Review A},
volume={79},
pages={053830},
year={2009},
}
Mark J. Ablowitz, Sean D. Nixon, and Yi Zhu. Conical diffraction in honeycomb lattices. 2009. Vol. 79. In Physical Review A. pp.053830. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20220428162144585545160.