@inproceedings{k.1929on,
title={On the boundary behaviour of elliptic modular functions},
author={K. Ananda-rau},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203050543789423},
booktitle={Acta Mathematica},
volume={52},
number={1},
pages={143-168},
year={1929},
}