5–14 μm Spitzer spectra of Themis family asteroids J. Licandro, K. Hargrove, M. Kelley, H. Campins, J. Ziffer, V. Alí-Lagoa, Y. Fernández and A. Rivkin A&A, 537 (2012) A73 Published online: 11 January 2012 DOI: 10.1051/0004-6361/201118142