Evidence for the concurrent growth of thick discs and central mass concentrations from S4G imagingS. Comerón, B. G. Elmegreen, H. Salo, E. Laurikainen, B. W. Holwerda and J. H. KnapenA&A, 571 (2014) A58DOI: https://doi.org/10.1051/0004-6361/201424412
