@inproceedings{albert1962on,
title={On meromorphic functions with regions free of poles and zeros},
author={Albert Edrei, and Wolfgang H. J. Fuchs},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203159713797943},
booktitle={Acta Mathematica},
volume={108},
number={1},
pages={113-145},
year={1962},
}
Albert Edrei, and Wolfgang H. J. Fuchs. On meromorphic functions with regions free of poles and zeros. 1962. Vol. 108. In Acta Mathematica. pp.113-145. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203159713797943.