@misc{indiciae4793017faafb,
  title = {Parametric study of optimized liquid-hydrogen thermal protection systems for nuclear interplanetary spacecraft. Volume 1 - Results and summary},
  author = {Barry, D. G. and Hunter, T. S.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19690001759},
  note = {Source identifier: 19690001759}
}