@misc{indiciae18d6e8281f40,
  title = {Specific Impulse Definition for Ablative Laser Propulsion},
  author = {Herren, Kenneth A. and Gregory, Don A.},
  year = {2004},
  url = {https://ntrs.nasa.gov/citations/20040170454},
  note = {Source identifier: 20040170454}
}