@article{Physics.2.20,
  title = {Classifying multiferroics: Mechanisms and effects},
  author = {Khomskii, Daniel},
  journal = {Physics},
  volume = {2},
  issue = {},
  pages = {20},
  numpages = {1},
  year = {2009},
  month = {Mar},
  doi = {10.1103/Physics.2.20},
  url = {http://link.aps.org/doi/10.1103/Physics.2.20},
  publisher = {American Physical Society}
}