@misc{indiciaeb9f4c6c04f54,
  title = {Method of igniting solid propellants Patent},
  author = {Allen, H., Jr. and Ciepluch, C. C. and Fletcher, E. A.},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19710006159},
  note = {Source identifier: 19710006159}
}