@misc{indiciae48bdff1c846b,
  title = {Applied thermionic research Quarterly progress report, 4 Mar. - 4 Jun. 1968},
  author = {Gyftopoulos, E. P. and Hatsopoulos, G. N. and Holly, F. and Lieb, D. and Rufeh, F. and Shaw, M. and Van Someren, L. and Wang, C.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680022020},
  note = {Source identifier: 19680022020}
}