γ * ρ 0→π 0 transition form factor in extended AdS/QCD models Fen Zuo, Yu Jia and Tao Huang Eur. Phys. J. C, 67 1-2 (2010) 253-261 Published online: 05 March 2010 DOI: 10.1140/epjc/s10052-010-1277-7