Nucleon electromagnetic form factors and polarization observables in space-like and time-like regions E. Tomasi-Gustafsson, F. Lacroix, C. Duterte and G. I. Gakh Eur. Phys. J. A, 24 3 (2005) 419-430 Published online: 27 May 2005 DOI: 10.1140/epja/i2005-10030-6