The role of the anomaly cancellation mechanism in the evaluation of the radiatively induced Chern–Simons term in extended QED O.A. Battistel and G. DallabonaEur. Phys. J. C, 32 Supplement 1 (2004) s1.1-s1.21DOI: https://doi.org/10.1140/epjcd/s2003-01-001-9