A new determination of the γπ → ππ anomalous amplitude via πe- → π-e-π0 dataI. Giller, A. Ocherashvili, T. Ebertshäuser, M. A. Moinester and S. SchererEur. Phys. J. A, 25 2 (2005) 229-240DOI: https://doi.org/10.1140/epja/i2005-10116-1