A tale of two tails and an off-centered envelope: diffuse light around the cD galaxy NGC 3311 in the Hydra I clusterM. Arnaboldi, G. Ventimiglia, E. Iodice, O. Gerhard and L. CoccatoA&A, 545 (2012) A37DOI: https://doi.org/10.1051/0004-6361/201116752