@misc{indiciaef564d71e3551,
  title = {Combustion instability of solid propellants},
  author = {Beckstead, M. W. and Culick, F. E. C. and Mathes, H. B. and Price, E. W.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19700035897},
  note = {Source identifier: 19700035897}
}