MathSciDoc: An Archive for Mathematician ∫

@inproceedings{h.1951on,
  title={On normalizable transformations in Hilbert space},
  author={H. J. Zimmerberg},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203132414768740},
  booktitle={Acta Mathematica},
  volume={86},
  number={1},
  pages={85-88},
  year={1951},
}