Miotello, A., Van Dishoeck, E. F., Williams, J. P., Ansdell, M., Guidi, G., Hogerheijde, M., Manara, C. F., Tazzari, M., Testi, L., van der Marel, N., & van Terwisga, S. (2017). Lupus disks with faint CO isotopologues: low gas/dust or high carbon depletion? Astronomy & Astrophysics, 599:. doi:10.1051/0004-6361/201629556.