Collinear improvement of the BFKL kernel in the electroproduction of two light vector mesons F. Caporale, A. Papa and A. Sabio Vera Eur. Phys. J. C, 53 4 (2008) 525-532 Published online: 18 December 2007 DOI: 10.1140/epjc/s10052-007-0481-6