@misc{indiciaed384a54ebfa7,
  title = {Burning rate control of solid propellants Patent},
  author = {Heidmann, M. F. and Povinelli, L. A.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19710012344},
  note = {Source identifier: 19710012344}
}