@misc{indiciaeda147a34f848,
  title = {Experimental development program for lunar surface navigation equipment},
  author = {Broussard, P. H., Jr. and Mastin, W. C. and Walls, B. F.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19700026493},
  note = {Source identifier: 19700026493}
}