@techreport{TechReport_2006_LANL_LA-UR-06-5807_Booth,
  address = {Los Alamos, NM, USA},
  author = {Booth, Thomas Edward},
  institution = {Los Alamos National Laboratory},
  number = {LA-UR-06-5807},
  title = {{Genesis of the Weight Window and the Weight Window Generator in MCNP-A Personal History (U)}},
  year = {2006}
}