The bottleneck of CNO burning and the age of Globular Clusters G. Imbriani, H. Costantini, A. Formicola, D. Bemmerer, R. Bonetti, C. Broggini, P. Corvisiero, J. Cruz, Z. Fülöp, G. Gervino et al. (20 more) A&A, 420 2 (2004) 625-629 Published online: 28 May 2004 DOI: 10.1051/0004-6361:20040981