Molecular hydrogen and [Fe II] in Active Galactic Nuclei A. Rodríguez-Ardila, M. G. Pastoriza, S. Viegas, T. A. A. Sigut and A. K. Pradhan A&A, 425 2 (2004) 457-474 Published online: 21 September 2004 DOI: 10.1051/0004-6361:20034285