MathSciDoc: An Archive for Mathematician ∫

@inproceedings{branko1968grassmann,
  title={Grassmann angles of convex polytopes},
  author={Branko Grünbaum},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203216118650066},
  booktitle={Acta Mathematica},
  volume={121},
  number={1},
  pages={293-302},
  year={1968},
}