Inter‐laboratory differences in the apparent quantum yield for the photochemical production of dissolved inorganic carbon in inland waters and implications for photochemical rate m... by Koehler, Birgit Powers, Leanne C. Cory, Rose M. Einarsdóttir, Karólína Gu, Yufei Tranvik, Lars J. Vähätalo, Anssi V. Ward, Collin P. Miller, William L.