@misc{indiciaebf393e103f7e,
  title = {Evidence for the negative work function associated with positrons in gold.},
  author = {Costello, D. G. and Groce, D. E. and Herring, D. F. and Mcgowan, J. W.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720037673},
  note = {Source identifier: 19720037673}
}