@inproceedings{seán1990extremal,
title={Extremal mappings for the Schwarz lemma},
author={Seán Dineen, and Richard M. Timoney},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203536651979570},
booktitle={Arkiv for Matematik},
volume={30},
number={1},
pages={61-81},
year={1990},
}