Spectroscopy and Regge trajectories of heavy quarkonia and B c mesons D. Ebert, R.N. Faustov and V.O. Galkin Eur. Phys. J. C, 71 12 (2011) 1825 Published online: 01 December 2011 DOI: 10.1140/epjc/s10052-011-1825-9