C2D Spitzer-IRS spectra of disks around T Tauri stars - V. Spectral decomposition J. Olofsson, J.-C. Augereau, E. F. van Dishoeck, B. Merín, N. Grosso, F. Ménard, G. A. Blake and J.-L. Monin A&A, 520 (2010) A39 Published online: 27 September 2010 DOI: 10.1051/0004-6361/200913909