Can non-commutativity resolve the big-bang singularity? M. Maceda, J. Madore, P. Manousselis and G. Zoupanos Eur. Phys. J. C, 36 4 (2004) 529-534 Published online: 23 July 2004 DOI: 10.1140/epjc/s2004-01968-0