MathSciDoc: An Archive for Mathematician ∫

@inproceedings{heinrich1931zur,
  title={Zur Theorie der Nicht Linearen Differenzen-Gleichungen},
  author={Heinrich Löwig},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203058092618479},
  booktitle={Acta Mathematica},
  volume={57},
  number={1},
  pages={293-340},
  year={1931},
}