CO(6−5) and [C i](2−1) pointed observations of five protoplanetary disks: Warm gas in HD 142527 S. Casassus, A. Hales, I. de Gregorio, B. Dent, A. Belloche, R. Güsten, F. Ménard, A. M. Hughes, D. Wilner and V. Salinas A&A, 553 (2013) A64 Published online: 06 May 2013 DOI: 10.1051/0004-6361/201219644