@misc{indiciaee4129d27e233,
  title = {Saturn V longitudinal oscillation /POGO/ solution.},
  author = {Hill, R. D. and Murphy, G. L. and Worlund, A. L.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690054669},
  note = {Source identifier: 19690054669}
}