High resolution IR observations of the starburst ring in NGC 7552 - One ring to rule them all? B. R. Brandl, N. L. Martín-Hernández, D. Schaerer, M. Rosenberg and P. P. van der Werf A&A, 543 (2012) A61 Published online: 27 June 2012 DOI: 10.1051/0004-6361/201117568