1. Soil classification for England and Wales (Higher Categories);Avery;Soil Survey Technical Monograph,1980
2. Use of the Kubelka-Munk theory to study the influence of iron oxides on soil colour;Barron;J. Soil Sci.,1986
3. Quaternary paleosols as indicators of the changing landscape on the northern and southern piedmonts of the Alps;Billard,1985
4. Soils and Geomorphology;Birkeland,1984
5. Solution and use of chronofunctions in studying soil development;Bockheim;Geoderma,1980