@misc{indiciae611820ccbbcb,
  title = {Space Programs Summary No. 37-40, Volume IV for the Period June 1, 1966 to July 31, 1966, Supporting Research and Advanced Development},
  author = {W H Pickering},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19670002772},
  note = {Source identifier: 19670002772}
}