Lithium abundances of halo dwarfs based on excitation temperatures - II. Non-local thermodynamic equilibriumA. Hosford, A. E. García Pérez, R. Collet, S. G. Ryan, J. E. Norris and K. A. OliveA&A, 511 (2010) A47DOI: https://doi.org/10.1051/0004-6361/200913693