Effects of phonon-phonon coupling on properties of pygmy resonance in 124-132Sn N. N. Arsenyev, A. P. Severyukhin, V. V. Voronov and Nguyen Van Giai EPJ Web of Conferences, 38 (2012) 17002 Published online: 10 December 2012 DOI: 10.1051/epjconf/20123817002