This site contains details of various point-group symmetries, their inter-relations and specific information regarding dipole-transition selection rules.
N. Arkani-Hamed, A. Cohen, and H. Georgi. (2001)cite arxiv:hep-ph/0105239Comment: 11 pages. Additional references and further clarifying remarks to agree with version to appear in PLB.
S. Arnone, T. Morris, and O. Rosten. (2006)cite arxiv:hep-th/0606181
Comment: 24 pages, 14 figures, Fields Inst style file; Talk presented by TRM
at RG2005, Helsinki, Finland, September 2005 and Renormalization and
Universality in Mathematical Physics Workshop, Fields Institute, Toronto,
Canada, October 2005, extended to include more details on the strong
renormalized coupling expansion. To be publ. as proceedings by the Fields
Institute.