1. Investigation and Monitoring Program for Decomposition of Organic Matters Injurious to the Environment in Constructed Wetlands – Reed Beds Plant for Sludge Drying and Treatment and in Sludge Deposit;Aagot,2000
2. Standard Methods for the Examination of Water and Wastewater;APHA,2005
3. Evaluation of biological sludge properties influencing volume reduction;Barber;Journal of the Water Pollution Control Federation,1986
4. On the stability of activated sludge flocs with implications to dewatering;Bruus;Water Research,1992
5. Anaerobic storage of activated sludge: effects on conditioning and dewatering performance;Bruus;Water Science and Technology,1993