1. Allison E (1965) Organic carbon. In: Black CA et al (eds) Methods of soil analysis, Part 2. American Society Agronomy, Madison, pp 1367–1378
2. Altieri MA (1995) Agroecology. Westview Press, Boulder, CO
3. Andow DA (1991) Vegetational diversity and arthropod response. Annu Rev Entomol 36:561–586
4. Bhardwaj KKR (1995) Improvements in microbial compost technology: a special reference to microbiology of composting. In: Khawna S, Mohan K (eds) Wealth from waste. Tata Energy Research Institute, New Delhi, pp 115–135
5. Birkhofer K, Fließbach A, Wise DH, Scheu S et al (2008) Generalist predators in organically and conventionally managed grassclover fields: implications for conservation biological control. Ann Appl Biol 153:271–280