@misc{indiciae005f21431693,
  title = {Lunar Surface Reference Missions: A Description of Human and Robotic Surface Activities},
  author = {Duke, Michael B. and Hoffman, Stephen J. and Snook, Kelly},
  year = {2003},
  url = {https://ntrs.nasa.gov/citations/20040034250},
  note = {Source identifier: 20040034250}
}