%0 Journal Article %T Diffusional Contribution to Carbon Isotope Fractionation during Dark CO2 Fixation in CAM Plants %A O'Leary, Marion H. %A Osmond, C. Barry %J Plant Physiology %V 66 %N 5 %P 931-934 %@ 0032-0889 %D 1980-11-01 %I American Society of Plant Biologists %~ DeepDyve