@misc{indiciae5588b280ccff,
  title = {The ballistic Mars hopper - An alternative Mars mobility concept},
  author = {Sercel, Joel C. and Blandino, John J. and Wood, Kristin L.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19870066962},
  note = {Source identifier: 19870066962}
}