MathSciDoc: An Archive for Mathematician ∫

@inproceedings{bruce1992degenerations,
  title={Degenerations of minimal ruled surfaces},
  author={Bruce Craùder},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203540159779599},
  booktitle={Arkiv for Matematik},
  volume={31},
  number={2},
  pages={173-173},
  year={1992},
}