This site contains details of various point-group symmetries, their inter-relations and specific information regarding dipole-transition selection rules.
I. Corominas, R. Pastor-Satorras, и M. Miguel. Abstract Book of the XXIII IUPAP International Conference on Statistical Physics, Genova, Italy, (9-13 July 2007)
J. Magee, R. Curtis, L. Lue, и V. Vasquez. Abstract Book of the XXIII IUPAP International Conference on Statistical Physics, Genova, Italy, (9-13 July 2007)