@misc{indiciae65391799c02f,
  title = {Horizontal Launch: A Versatile Concept for Assured Space Access},
  author = {Bartolotta, Paul and Wilhite, Alan W. and Schaffer, Mark and Voland, Randall T. and Huebner, Larry},
  year = {2011},
  url = {https://ntrs.nasa.gov/citations/20120000791},
  note = {Source identifier: 20120000791}
}