@ARTICLE{Mag,
  author  = {{S.} {F.} Biagi},
  title   = {Accurate solution of the {B}otltzmann transport equation},
  journal = {Nuclear Instruments and Methods},
  year    = {1988},
  volume  = {A 373},
  number  = {},
  pages   = {533-535},
  month   = {},
}