@techreport{TechReport_1947_LANL_LAMS-551_RichtmyerNeumann,
  address = {Los Alamos, NM, USA},
  author = {Richtmyer, Robert D. and von Neumann, John},
  institution = {Los Alamos National Laboratory},
  month = {March},
  number = {LAMS-551},
  title = {{Statistical Methods in Neutron Diffusion}},
  year = {1947}
}