Multiwavelength dissection of a massive heavily dust-obscured galaxy and its blue companion at z∼2M. Hamed, L. Ciesla, M. Béthermin, K. Małek, E. Daddi, M. T. Sargent and R. GobatA&A, 646 (2021) A127DOI: https://doi.org/10.1051/0004-6361/202039577