@misc{indiciae12563809b855,
  title = {Gamma source for active interrogation},
  author = {Leung, Ka-Ngo and Lou, Tak Pui and Barletta, William A.},
  year = {2012},
  url = {https://www.osti.gov/biblio/1079444},
  note = {Source identifier: 1079444}
}