@misc{indiciaecbaa8785ca7c,
  title = {An ablating nozzle concept for solid propellant rocket motors},
  author = {Schwartz, M. A. and Frey, C. M.},
  year = {1962},
  url = {https://ntrs.nasa.gov/citations/19730065139},
  note = {Source identifier: 19730065139}
}