@inproceedings{mary1989a,
title={A partial description of parameter space of rational maps of degree two: Part I},
author={Mary Rees},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203317517048466},
booktitle={Acta Mathematica},
volume={168},
number={1},
pages={11-87},
year={1989},
}
Mary Rees. A partial description of parameter space of rational maps of degree two: Part I. 1989. Vol. 168. In Acta Mathematica. pp.11-87. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203317517048466.