Analysis of the quadrupole deformation of Δ(1232) within an effective Lagrangian model for pion photoproduction from the nucleonC. Fernández-Ramırez, E. Moya de Guerra and J. M. UdıasEur. Phys. J. A, 31 4 (2007) 572-574DOI: https://doi.org/10.1140/epja/i2006-10198-1