1. R.d.A. Toorop, F. Bazzocchi, L. Merlo and A. Paris, Constraining Flavour Symmetries At The EW Scale I: The A 4 Higgs Potential, arXiv:1012.1791 [ SPIRES ].
2. G. Altarelli and F. Feruglio, Discrete Flavor Symmetries and Models of Neutrino Mixing, Rev. Mod. Phys. 82 (2010) 2701 [ arXiv:1002.0211 ] [ SPIRES ].
3. E. Ma and G. Rajasekaran, Softly broken A 4 symmetry for nearly degenerate neutrino masses, Phys. Rev. D 64 (2001) 113012 [ hep-ph/0106291 ] [ SPIRES ].
4. S. Morisi and E. Peinado, An A 4 model for lepton masses and mixings, Phys. Rev. D 80 (2009) 113011 [ arXiv:0910.4389 ] [ SPIRES ].
5. L. Lavoura and H. Kuhbock, A 4 model for the quark mass matrices, Eur. Phys. J. C 55 (2008) 303 [ arXiv:0711.0670 ] [ SPIRES ].