@techreport{TechReport_2025_LANL_LA-UR-25-22398Rev.1_JoseyClarkEtAl,
  address = {Los Alamos, NM, USA},
  author = {Josey, Colin J. and Clark, Alexander R. and Kulesza, Joel A. and Lively, Michael A. and Pearson, Eric J. and Rising, Michael E.},
  institution = {Los Alamos National Laboratory},
  month = {March},
  number = {LA-UR-25-22398, Rev.~1},
  title = {{MCNP\textsuperscript{\textregistered} Code Version 6.3.1 Verification \& Validation Testing}},
  year = {2025}
}