@misc{indiciae2a8fcd2b90ce,
  title = {Clustered engine study},
  author = {Shepard, Kyle and Sager, Paul and Kusunoki, Sid and Porter, John and Campion, AL and Mouritzan, Gunnar and Glunt, George and Vegter, George and Koontz, Rob},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19930017736},
  note = {Source identifier: 19930017736}
}