@inproceedings{leo1962value,
title={Value distribution under analytic mappings of arbitrary Riemann surfaces},
author={Leo Sario},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203200252853947},
booktitle={Acta Mathematica},
volume={109},
number={1},
pages={1-10},
year={1962},
}
Leo Sario. Value distribution under analytic mappings of arbitrary Riemann surfaces. 1962. Vol. 109. In Acta Mathematica. pp.1-10. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203200252853947.