1. The buffer capacity of soils and their main functions New;Truskavetskiy;Word,2003
2. Ratio ecological functions of soils and their environmental properties No;Gorban,2008
3. ISO Quality soil Method for determination of acidbase soil buffering,2005
4. Agricultural sustainability and intensive production practices;Tilman;Nature,2002
5. Functions of Soil for the Reviews in Environmental Biotechnology;Blum;Society Environment Science,2005