Evolutionary study of complex organic molecules in high-mass star-forming regionsA. Coletta, F. Fontani, V. M. Rivilla, C. Mininni, L. Colzi, Á. Sánchez-Monge and M. T. BeltránA&A, 641 (2020) A54DOI: https://doi.org/10.1051/0004-6361/202038212