Dispersive analysis of the pion transition form factorM. Hoferichter, B. Kubis, S. Leupold, F. Niecknig and S. P. SchneiderEur. Phys. J. C, 74 11 (2014) 3180DOI: https://doi.org/10.1140/epjc/s10052-014-3180-0