@article{escidoc:0306,
  title = {{Spin interactions in bcc and fcc Fe beyond the Heisenberg model}},
  journal = {{Physical Review Letters}},
  volume = {107},
  year = {2011},
  slug = {escidoc-0306},
  author = {Singer, R. and Dietermann, F. and F\"ahnle, M.}
}