@misc{1171646,
  author = {J H Hubbell},
  title = {Photon cross sections, attenuation coefficients, and energy absorption coefficients from 10 keV to 100 GeV:},
  year = {1969},
  month = {1969-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.NSRDS.29},
  language = {en},
}