@misc{indiciaec8cd644264a0,
  title = {Hybrid propulsion technology program. Volume 2: Technology definition package},
  author = {Jensen, Gordon E. and Holzman, Allen L. and Leisch, Steven O. and Keilbach, Joseph and Parsley, Randy and Humphrey, John},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19900012478},
  note = {Source identifier: 19900012478}
}