@misc{indiciaef8853541a2db,
  title = {Viking navigation},
  author = {Oneil, W. J. and Rudd, R. P. and Farless, D. L. and Hildebrand, C. E. and Mitchell, R. T. and Rourke, K. H. and Euler, E. A.},
  year = {1979},
  url = {https://ntrs.nasa.gov/citations/19800012912},
  note = {Source identifier: 19800012912}
}