MathSciDoc: An Archive for Mathematician ∫

@inproceedings{chr1884zu,
  title={Zu Eulers Recursionseormel für die Divisorensummen},
  author={Chr Zeller},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108202933946262782},
  booktitle={Acta Mathematica},
  volume={4},
  number={1},
  pages={415-416},
  year={1884},
}