Decay rates of quarkonia with NRQCD formalism using spectroscopic parameters of potential models A. K. Rai, J. N. Pandya and P. C. Vinodkumar Eur. Phys. J. A, 38 1 (2008) 77-84 Published online: 12 September 2008 DOI: 10.1140/epja/i2008-10639-9