1. Antonovics J, Bradshaw AD, Turner RG (1971) Heavy metal tolerance in plants. In: Cragg J (ed) Advances in Ecological Research, vol 7. Academic Press, London, pp 1?85
2. Asp H, Bengtsson B, Jensén P (1988) Growth and cation uptake in spruce (Picea abies Karst.) grown in sand culture with various aluminium contents. Plant Soil 111:127?133
3. Baus Picard J (1986) L'accumulation des cations (K, Ca, Mg, Na et Fe) et l'adaptation de Dittrichia (ex Inula) viscosa W. Greuter, aux sols acides et calcaires. Thèse Doctorat, Université Montpellier II
4. Baus Picard J, Wacquant JP (1990) Simulation of an acidic soil in sand culture. C R Acad Sci Paris 311:269?274
5. Bengtsson B, Asp H, Jensén P, Berggren D (1988) Influence of aluminium on phosphate and calcium uptake in beech (Fagus sylvatica) grown in nutrient solution and soil solution. Physiol Plant 74:299?305