@techreport{TechReport_1992_LANL_LA-12433_Booth,
  address = {Los Alamos, NM, USA},
  author = {Booth, Thomas Edward},
  institution = {Los Alamos National Laboratory},
  month = {December},
  number = {LA-12433},
  title = {{Monte Carlo Variance Reduction Approaches for Non-Boltzmann Tallies}},
  year = {1992}
}