@misc{indiciaec4ce3fb68de8,
  title = {Materials trade study for lunar/gateway missions},
  author = {Tripathi, R. K. and Wilson, J. W. and Cucinotta, F. A. and Anderson, B. M. and Simonsen, L. C.},
  year = {2003},
  url = {https://ntrs.nasa.gov/citations/20040087421},
  note = {Source identifier: 20040087421}
}