@inproceedings{r.1982on,
title={On additive automorphic and rotation automorphic functions},
author={R. Aulaskari, and P. Lappan},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203517068637406},
booktitle={Arkiv for Matematik},
volume={22},
number={1},
pages={83-89},
year={1982},
}
R. Aulaskari, and P. Lappan. On additive automorphic and rotation automorphic functions. 1982. Vol. 22. In Arkiv for Matematik. pp.83-89. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203517068637406.