1. A model for simulating photosynthesis in plant communities
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3. T. Nilson, 1968 : On the optimum geometrical arrangement of foliage in plant cover . In: Radiatsionnyi rezhim i fotosintez rastitelnogo pokrova, pp.112 -146 . IPA Tartu (c.f. J. ROSS 1969: Mathematical models of photosynthesis in a plant stand. In: Prediction and measurement of photosynthetic productivity. Proc. IBP/PP Technical Meeting, Trebon, 14-21 September, 1969).