@misc{indiciae4e993cf1a4c4,
  title = {Interplanetary Guidance System Requirements Study. Volume 2 - Computer Program Descriptions. Part 2 - Performance Assessment of Midcourse Guidance Systems},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19680002374},
  note = {Source identifier: 19680002374}
}