MathSciDoc: An Archive for Mathematician ∫

@inproceedings{d.1984hilbert,
  title={Hilbert integrals, singular integrals, and Radon transforms I},
  author={D. H. Phong, and E. M. Stein},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203307002806390},
  booktitle={Acta Mathematica},
  volume={157},
  number={1},
  pages={99-157},
  year={1984},
}