Towards universal hybrid star formation rate estimators M. Boquien, R. Kennicutt, D. Calzetti, D. Dale, M. Galametz, M. Sauvage, K. Croxall, B. Draine, A. Kirkpatrick, N. Kumari et al. (6 more) A&A, 591 (2016) A6 Published online: 01 June 2016 DOI: 10.1051/0004-6361/201527759