@inproceedings{a.1965extremal,
title={Extremal and conjugate extremal distance on open Riemann surfaces with applications to circular-radial slit mappings},
author={A. Marden, and B. Rodin},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203208646640011},
booktitle={Acta Mathematica},
volume={115},
number={1},
pages={237-269},
year={1965},
}
A. Marden, and B. Rodin. Extremal and conjugate extremal distance on open Riemann surfaces with applications to circular-radial slit mappings. 1965. Vol. 115. In Acta Mathematica. pp.237-269. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203208646640011.