Nuclear activity in nearby galaxies - Mid-infrared imaging with the VLT R. Siebenmorgen, M. Haas, E. Pantin, E. Krügel, C. Leipski, H. U. Käufl, P. O. Lagage, A. Moorwood, A. Smette and M. Sterzik A&A, 488 1 (2008) 83-90 Published online: 09 July 2008 DOI: 10.1051/0004-6361:200809539