@misc{indiciaeeee6ef3fd4fe,
  title = {Radioisotope heater},
  author = {Smith, T. H., III and Evans, D. B. and Steinberger, A. J.},
  year = {1974},
  url = {https://ntrs.nasa.gov/citations/19740000051},
  note = {Source identifier: 19740000051}
}