@misc{indiciaea198d033f901,
  title = {Space shuttle vehicle automatic docking study},
  author = {Blanchard, E. P. and Hutchinson, R. C. and Johnson, L. B.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19720004940},
  note = {Source identifier: 19720004940}
}