1. Bassham, J. A., The control of photosynthetic carbon metabolism. Science 172, 526–534 (1971).
2. Cocking, E. C. and Yemm, E. W., Synthesis of amino acids and proteins in barley seedlings. New Phytologist 60, 103–116 (1961).
3. Coic, Y., Le Saint, C. and Le Roux, F., Effects de la nature ammoniacale ou nitrique de l'alimentation sur le metabolisme des anions et cations chez la tomate. Ann. Veg. 4, 117–125 (1962).
4. Dijkshoorn, W., Metabolic regulation of the alkaline effect of nitrate utilization in plants. Nature 194, 165–167 (1962).
5. Dijkshoorn, W., The relation of growth to the chief ionic constituents of the plant. In Ecological Aspects of the mineral Nutrition of Plants. British Ecolog. Soc. Symp. No 9 edited by Rorison, I. H. Blackwell Scient. Publ. Oxford and Edinburgh 1969.