Extranuclear Hα-emitting complexes in low-z (U)LIRGs: precursors of tidal dwarf galaxies? D. Miralles-Caballero, L. Colina and S. Arribas A&A, 538 (2012) A61 Published online: 02 February 2012 DOI: 10.1051/0004-6361/201117438