@inproceedings{shing-tung1996bps,
title={BPS states, string duality, and nodal curves on K3},
author={Shing-Tung Yau, and Eric Zaslow},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224203555679897054},
booktitle={Nuclear Physics B},
volume={471},
number={3},
pages={503-512},
year={1996},
}
Shing-Tung Yau, and Eric Zaslow. BPS states, string duality, and nodal curves on K3. 1996. Vol. 471. In Nuclear Physics B. pp.503-512. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224203555679897054.