The Green function for the BFKL pomeron and the transition to DGLAP evolution H. Kowalski, L. N. Lipatov and D. A. Ross Eur. Phys. J. C, 74 6 (2014) 2919 Published online: 07 June 2014 DOI: 10.1140/epjc/s10052-014-2919-y