@misc{indiciae12fe4af3287f,
  title = {A summary of ground-loads statistics},
  author = {Westfall, John R and Milwitzky, Benjamin and Silsby, Norman S and Dreher, Robert C},
  year = {1957},
  url = {https://ntrs.nasa.gov/citations/19930084935},
  note = {Source identifier: 19930084935}
}