Wootters' distance revisited: a new distinguishability criterium A. Majtey, P. W. Lamberti, M. T. Martin and A. Plastino Eur. Phys. J. D, 32 3 (2005) 413-419 Published online: 25 January 2005 DOI: 10.1140/epjd/e2005-00005-1