@inproceedings{richard2005limit,
title={Limit shapes and the complex Burgers equation},
author={Richard Kenyon, and Andrei Okounkov},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203351240560697},
booktitle={Acta Mathematica},
volume={199},
number={2},
pages={263-302},
year={2005},
}
Richard Kenyon, and Andrei Okounkov. Limit shapes and the complex Burgers equation. 2005. Vol. 199. In Acta Mathematica. pp.263-302. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203351240560697.