@misc{indiciaedd81796d8044,
  title = {Sub-Surface RTG Systems and New Heat Sources},
  author = {Oxnevad, Knut and Nesmith, Bill and Mueller, Juergen and Brandt, Nataly and Hendricks, Terry J.},
  year = {2018},
  url = {https://ntrs.nasa.gov/citations/20210007180},
  note = {Source identifier: 20210007180}
}