Integral field optical spectroscopy of a representative sample of ULIRGs - I. The data M. García-Marín, L. Colina, S. Arribas and A. Monreal-Ibero A&A, 505 3 (2009) 1319-1343 Published online: 02 July 2009 DOI: 10.1051/0004-6361/200811324