Formation of interstellar methanol ice prior to the heavy CO freeze-out stageD. Qasim, K.-J. Chuang, G. Fedoseev, S. Ioppolo, A. C. A. Boogert and H. LinnartzA&A, 612 (2018) A83DOI: https://doi.org/10.1051/0004-6361/201732355