Survey of the ISM in early-type galaxies - IV. The hot dust component F. Ferrari, M. G. Pastoriza, F. D. Macchetto, C. Bonatto, N. Panagia and W. B. Sparks A&A, 389 2 (2002) 355-366 Published online: 27 June 2002 DOI: 10.1051/0004-6361:20020582