1. Changes in the podzolic soils of the Murmansk Region under cultivation;Aderikhin;Sov. Soil Sci.,1960
2. Reclamation of the Danish Heath;Akin;J. Soil Water Conserv.,1963
3. Physical, chemical and biochemical changes in the soil community;Albrecht,1956
4. Man as a factor in soil formation;Bidwell;Soil Sci.,1965
5. Man's Role in Soil Profile Modification and Formation in Ireland;Conry,1970