MathSciDoc: An Archive for Mathematician ∫

@inproceedings{i.1969an,
  title={An unpublished paper by Georg Cantor: Principien einer Theorie der Ordnungstypen Erste Mittheilung},
  author={I. Grattan-Guinness},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203219395566089},
  booktitle={Acta Mathematica},
  volume={124},
  number={1},
  pages={65-107},
  year={1969},
}