@misc{indiciae55419aa8b6a9,
  title = {High efficiency thermionic converter studies},
  author = {Huffman, F. N. and Sommer, A. H. and Balestra, C. L. and Briere, D. P. and Oettinger, P. E.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19770006877},
  note = {Source identifier: 19770006877}
}