Circumstellar molecular composition of the oxygen-rich AGB star IK Tauri - II. In-depth non-LTE chemical abundance analysisL. Decin, E. De Beck, S. Brünken, H. S. P. Müller, K. M. Menten, H. Kim, K. Willacy, A. de Koter and F. WyrowskiA&A, 516 (2010) A69DOI: https://doi.org/10.1051/0004-6361/201014136