@misc{indiciae3ce76bb481be,
  title = {Venus Sample Return Options},
  author = {Gershman, R. and Stofan, E. and Rodgers, D. and Sweetser, T.},
  year = {1999},
  url = {https://ntrs.nasa.gov/citations/20060040527},
  note = {Source identifier: 20060040527}
}