@misc{indiciaecf00a0ae7138,
  title = {Propulsion System Choices and Their Implications},
  author = {Joyner, Claude R., II and Levack, Daniel J. H. and Rhodes, Russell, E. and Robinson, John W.},
  year = {2010},
  url = {https://ntrs.nasa.gov/citations/20110003599},
  note = {Source identifier: 20110003599}
}