Galaxy evolution in groups - NGC 3447/NGC 3447A: the odd couple in LGG 225 P. Mazzei, A. Marino, R. Rampazzo, H. Plana, M. Rosado and L. Arias A&A, 610 (2018) A8 Published online: 12 February 2018 DOI: 10.1051/0004-6361/201731182