@article{escidoc:0578,
  title = {{Construction of basis functions for the spin-cluster expansion of the magnetic energy on the atomic scale in rotationally invariant systems}},
  journal = {{Journal of Mathematical Physics}},
  volume = {47},
  year = {2006},
  slug = {escidoc-0578},
  author = {Singer, R. and F\"ahnle, M.}
}