@misc{indiciae0b5c66ef6af5,
  title = {Applied thermionic research Final report, 1 Dec. 1967 - 1 Dec. 1968},
  author = {Gyftopoulos, E. P. and Hatsopoulos, G. N. and Lieb, D. and Rufeh, F. and Shaw, M. and Van Someren, L.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19690024148},
  note = {Source identifier: 19690024148}
}