@misc{indiciae31718397c8c3,
  title = {Lunar Sulfur Capture System},
  author = {Berggren, Mark and Zubrin, Robert and Bostwick-White, Emily},
  year = {2013},
  url = {https://ntrs.nasa.gov/citations/20130013839},
  note = {Source identifier: 20130013839}
}