@article{CHILE2009,
  author    = {J.-F. Biasse},
  title     = {Improvements in the computation of ideal class groups of imaginary
               quadratic number fields.},
  journal   = {Adv. in Math. of Comm.},
  year      = {2010},
  volume    = {4},
  number    = {2},
  pages     = {141--154}
}