@misc{indiciae66b0d938ed96,
  title = {Viking 1 planetary phase tracking operations: Mars orbit insertion through landing},
  author = {Berman, A. L. and Wackley, J. A.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19770003166},
  note = {Source identifier: 19770003166}
}