Symmetries and groups in contemporary physics : proceedings of the XXIX International Cooloquium on Group-Theoretical Methods in Physics, Tianjin, China, 20-26 August 2012 / by International Colloquium on Group Theoretical Methods in Physics (29 : 2012 : Tianjin, China), Bai, Chengming, editor, Gazeau, Jean-Pierre, editor, Ge, M. L. (Mo-Lin), editor