MathSciDoc: An Archive for Mathematician ∫

@inproceedings{joachim1986invariant,
  title={Invariant Lorentzian orders on simply connected Lie groups},
  author={Joachim Hilgert},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203526157409480},
  booktitle={Arkiv for Matematik},
  volume={26},
  number={1},
  pages={107-115},
  year={1986},
}