Mid-Infrared line diagnostics of active galaxies - A spectroscopic AGN survey with ISO-SWS E. Sturm, D. Lutz, A. Verma, H. Netzer, A. Sternberg, A. F. M. Moorwood, E. Oliva and R. Genzel A&A, 393 3 (2002) 821-841 Published online: 01 October 2002 DOI: 10.1051/0004-6361:20021043