1. Adams, WA. and Kassim, J.K. 1984. Iron oxyhydroxides in soils developed from Lower Palaeozoic sedimentary rocks in Mid-Wales and implications for some pedogenic processes. J. Soil Sci.
35, 117–126.
2. Bailey, S.W. 1980. Structures of layer silicates. In G.W. Brindley and G. Brown (eds.), Crystal Structures of Clay Minerals and Their X-ray Identification. Mineralogical Society, London. pp. 1–124.
3. Bolt, G.H. and Van Riemsdijk, W. 1987. Surface chemical processes. In W. Stumm (ed.), Aquatic Surface Chemistry. Wiley, New York, pp. 127–164
4. Brindley, G.W. and Brown, G. 1980. Crystal Structures of Clay Minerals and Their X-ray Identification. Mineralogical Society, London.
5. Brinkman, 1979. Ferrolysis, a soil-forming process in hydromorphic conditions. Agric. Res. Reports 887, Wageningen.