@misc{indiciaec9efbb88944a,
  title = {Manned lunar flying machines - Operational characteristics.},
  author = {Kitchens, M. D., Jr. and Meyer, A. J., Jr.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680053779},
  note = {Source identifier: 19680053779}
}