@techreport{TechReport_2010_LANL_X-3-RNU03-013LA-UR-10-00459_Mashnik,
  address = {Los Alamos, NM, USA},
  author = {Mashnik, Stepan Georgievich},
  institution = {Los Alamos National Laboratory},
  number = {X-3-RN(U)03-013/LA-UR-10-00459},
  title = {{A Variable Density Atmosphere Model for MCNP6}},
  type = {Research Note},
  url = {http://permalink.lanl.gov/object/tr?what=info:lanl-repo/lareport/LA-UR-10-00459},
  year = {2010}
}