@misc{indiciaea55d2798508a,
  title = {Study of a soft lander/support module for Mars missions. Volume 3 - Appendixes Final summary report},
  author = {Mann, M. K. and Preston, B. W. and Stafford, P. S.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690006270},
  note = {Source identifier: 19690006270}
}