An ALMA 3 mm continuum census of Westerlund 1D. M. Fenech, J. S. Clark, R. K. Prinja, S. Dougherty, F. Najarro, I. Negueruela, A. Richards, B. W. Ritchie and H. AndrewsA&A, 617 (2018) A137DOI: https://doi.org/10.1051/0004-6361/201832754