@misc{indiciae8fe5e9f49bad,
  title = {An electromagnetic/electrostatic dual cathode system for electron beam instruments},
  author = {Bradley, J. G. and Conley, J. M. and Wittry, D. B. and Albee, A. L.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19870047441},
  note = {Source identifier: 19870047441}
}