Dynamics of normal and anomalous diffusion in nonlinear Fokker-Planck equations V. Schwämmle, E. M.F. Curado and F. D. Nobre Eur. Phys. J. B, 70 1 (2009) 107-116 Published online: 13 May 2009 DOI: 10.1140/epjb/e2009-00172-9