@misc{indiciae7de1c0576c7b,
  title = {NASA Lewis Launch Collision Probability Model Developed and Analyzed},
  author = {Bollenbacher, Gary and Guptill, James D},
  year = {1999},
  url = {https://ntrs.nasa.gov/citations/20050194721},
  note = {Source identifier: 20050194721}
}