@inproceedings{sakari1970some, title={Some remarks on the value distribution of meromorphic functions}, author={Sakari Toppila}, url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203445762902141}, booktitle={Arkiv for Matematik}, volume={9}, number={1}, pages={1-9}, year={1970}, }