@misc{indiciaeff8e13a7c70a,
  title = {Design considerations for Surveyor guidance},
  author = {Cheng, R. K. and Conrad, D. A. and Meredith, C. M.},
  year = {1961},
  url = {https://ntrs.nasa.gov/citations/19670003873},
  note = {Source identifier: 19670003873}
}