Neutral oxygen spectral line formation revisited with new collisional data: large departures from LTE at low metallicityD. Fabbian, M. Asplund, P. S. Barklem, M. Carlsson and D. KiselmanA&A, 500 3 (2009) 1221-1238DOI: https://doi.org/10.1051/0004-6361/200809640
