@techreport{TechReport_2004_LANL_LA-13955_Booth,
  address = {Los Alamos, NM, USA},
  author = {Booth, Thomas Edward},
  institution = {Los Alamos National Laboratory},
  month = {August},
  number = {LA-13955},
  title = {{Pulse Height Tally Variance Reduction in MCNP}},
  year = {2004}
}