Bottinelli, Sandrine, Hughes, A. Meredith, van Dishoeck, Ewine F., Young, Ken H., Chamberlin, Richard, Tilanus, Remo P. J., Gurwell, Mark A., Wilner, David J., van Langevelde, Huib Jan, Hogerheijde, Michiel R., Christensen, Robert D., Shinnaga, Hiroko, and Yoshida, Hiroshige. 2009. "Detection of C I in Absorption toward PKS 1830 – 211 with the eSMA." The Astrophysical Journal Letters, 690 L130–L134. https://doi.org/10.1088/0004-637X/690/2/L130.