MathSciDoc: An Archive for Mathematician ∫

@inproceedings{christer1957on,
  title={On the associativity formula for multiplicities},
  author={Christer Lech},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203421188454928},
  booktitle={Arkiv for Matematik},
  volume={3},
  number={4},
  pages={301-314},
  year={1957},
}