@misc{indiciaeb5a6f191759a,
  title = {Identification of propulsion systems},
  author = {Merrill, Walter and Guo, Ten-Huei and Duyar, Ahmet},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19930010920},
  note = {Source identifier: 19930010920}
}