Lithium and zirconium abundances in massive Galactic O-rich AGB starsD. A. García-Hernández, P. García-Lario, B. Plez, A. Manchado, F. D'Antona, J. Lub and H. HabingA&A, 462 2 (2007) 711-730DOI: https://doi.org/10.1051/0004-6361:20065785