MathSciDoc: An Archive for Mathematician ∫

@inproceedings{bengt1978the,
  title={The oblique derivative problem II},
  author={Bengt Winzell},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203505386590309},
  booktitle={Arkiv for Matematik},
  volume={17},
  number={1},
  pages={107-122},
  year={1978},
}