@misc{indiciaeff26426b1b5b,
  title = {Non-static surfaces in MCNPX: The chopper extension},
  author = {Grammer, Kyle and Gallmeier, Franz X. and Iverson, Erik B.},
  year = {2020},
  doi = {10.3233/jnr-200148},
  url = {https://www.osti.gov/biblio/1779158},
  note = {Source identifier: 1779158}
}