@inproceedings{allen1968meromorphic,
title={Meromorphic functions with maximal deficiency sum and a conjecture of F. Nevanlinna},
author={Allen Weitsman},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203218433670081},
booktitle={Acta Mathematica},
volume={123},
number={1},
pages={115-139},
year={1968},
}
Allen Weitsman. Meromorphic functions with maximal deficiency sum and a conjecture of F. Nevanlinna. 1968. Vol. 123. In Acta Mathematica. pp.115-139. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203218433670081.