Y.K. Hsiao, C.Q. Geng, "Identifying Glueball at 3.02 GeV in Baryonic B Decays" (Version 2: October 9, 2013) http://arxiv.org/abs/1302.3331
Wolfgang Ochs, "The Status of Glueballs" J.Phys.G: Nuclear and Particle Physics 40, 6 (2013) DOI: 10.1088/0954-3899/40/4/043001 http://arxiv.org/pdf/1301.5183v3.pdf
See, e.g., Walaa I. Eshraim, Stanislaus Janowski, "Branching ratios of the pseudoscalar glueball with a mass of 2.6 GeV", prepared for Proceedings of Confinement X - Conference on Quark Confinement and the Hadron Spectrum (Munich/Germany, 8-12 October 2012) (pre-print published January 15, 2013) http://arxiv.org/abs/1301.3345
