1. Berendse F, Elberse WT (1989) Competition and nutrient losses from the plant. In: Lambers H, Cambridge ML, Konings H, Pons TL (eds) Causes and consequences of variation in growth rate and productivity of higher plants. SPB Academic, The Hague, pp 269?284
2. Berendse F, Elberse WT, Geerts RHME (1992) Competition and nitrogen loss from plants in grassland ecosystems. Ecology 73:46?53
3. Boot RGA (1989) The significance of size and morphology of root systems for nutrient acquisition and competition. In: Lambers H, Cambridge ML, Konings H, Pons TL (es) Causes and consequences of variation in growth rate and productivity of higher plants. SPB Academic, The Hague, pp 299?311
4. Boot RGA, Mensink M (1990) The effect of nitrogen supply on the size and morphology of root systems of perennial grasses from contrasting habitats. Plant Soil 129:291?299
5. Boot RGA, Mensink M (1991) The influence of nitrogen availability on growth parameters of fast- and slow-growing perennial grasses. In: Atkinson D (ed) Plant root growth, an ecological perspective. (Special publication of the British Ecological Society). Blackwell Scientific, Oxford, pp 161?168