@misc{indiciaebcc14d00c18f,
  title = {Recent Progress in the Development of a Multi-Layer Green's Function Code for Ion Beam Transport},
  author = {Tweed, John and Walker, Steven A. and Wilson, John W. and Tripathi, Ram K.},
  year = {2008},
  url = {https://ntrs.nasa.gov/citations/20080012501},
  note = {Source identifier: 20080012501}
}