Planck’s dusty GEMS - IV. Star formation and feedback in a maximum starburst at z = 3 seen at 60-pc resolutionR. Cañameras, N. Nesvadba, R. Kneissl, B. Frye, R. Gavazzi, S. Koenig, E. Le Floc’h, M. Limousin, I. Oteo and D. ScottA&A, 604 (2017) A117DOI: https://doi.org/10.1051/0004-6361/201630186