1. Bjorkman, O.: The effect of oxygen concentration on photosynthesis in higher plants. Physiol. Plantarum (Copenh.) 19, 618?633 (1966).
2. El-Sharkawy, M., and J. Hesketh: Photosynthesis among species in relation to characteristics of leaf anatomy and CO2 diffusion resistances. Crop Sci. 5, 517?521 (1965).
3. Forrester, M. L., G. Krotkov, and C. D. Nelson: Effect of oxygen on photosynthesis, photorespiration and respiration in detached leaves. I. Soybean, II. Corn and other monocotyledons. Plant Physiol. 41, 422?427, 428?431 (1966).
4. Poskuta, T., C. D. Nelson, and G. Krotkov: Effect of inhibitors and of partial pressure of oxygen in air on the rates of dark respiration and photorespiration of detached wheat and soybean leaves. (Abstr.) Plant Physiol., Proc. Ann. Meet. Amer. Soc. Plant Physiologists 1966, College Park, Maryland (USA), p. xxxvii?xxxviii.
5. Zelitch, I.: Increased rate of photosynthesis in tobacco at 35°C by inhibition of glycolate oxidase. (Abstr.) Plant Physiol., Proc. Ann. Meet. Amer. Soc. Plant Physiologists 1966, College Park, Maryland (USA). p. xxxviii.