@article{4656,
  author       = {Engels, J and Fromme, Lars and Seniuch, M},
  issn         = {0920-5632},
  journal      = {Nuclear Physics B - Proceedings Supplements},
  pages        = {783--785},
  publisher    = {Elsevier BV},
  title        = {{External field dependence of the correlation lengths in the three-dimensional O(4) model}},
  doi          = {10.1016/S0920-5632(03)02712-9},
  volume       = {129-130},
  year         = {2004},
}