@misc{indiciaeead647987c48,
  title = {Liquid-metal cathode research.},
  author = {Eckhardt, W. O. and King, H. J. and Knechtli, R. C. and Snyder, J.},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19660045885},
  note = {Source identifier: 19660045885}
}