Tracing the total molecular gas in galaxies: [CII] and the CO-dark gas S. C. Madden, D. Cormier, S. Hony, V. Lebouteiller, N. Abel, M. Galametz, I. De Looze, M. Chevance, F. L. Polles, M.-Y. Lee et al. (4 more) A&A, 643 (2020) A141 Published online: 17 November 2020 DOI: 10.1051/0004-6361/202038860