@misc{indiciae5e0d5b411ae1,
  title = {International cooperation for Mars exploration and sample return},
  author = {Levy, Eugene H. and Boynton, William V. and Cameron, A. G. W. and Carr, Michael H. and Kitchell, Jennifer H. and Mazur, Peter and Pace, Norman R. and Prinn, Ronald G. and Solomon, Sean C. and Wasserburg, Gerald J.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900014103},
  note = {Source identifier: 19900014103}
}