@misc{indiciae6e53e4ff66a4,
  title = {Advanced propulsion for LEO-Moon transport. 1: A method for evaluating advanced propulsion performance},
  author = {Stern, Martin O.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19930008231},
  note = {Source identifier: 19930008231}
}