Partonic transverse momenta in non-relativistic hyper-central quark potential models F. K. Diakonos, N. K. Kaplis and X. N. Maintas Eur. Phys. J. A, 41 1 (2009) 101-108 Published online: 20 May 2009 DOI: 10.1140/epja/i2009-10778-5