1. Andreottola G. and Cannas P. (1992) Chemical and biological characteristics of landfill leachate. In Landfilling of Waste: Leachate (Edited by Christensen T. H., Cossu R. and Stegmann R.), pp. 65–88. Elsevier Science Publishers Ltd., Essex
2. Anaerobic treatment of leachates in UASB reactors;Berrueta;J Chem. Tech. Biotechnol.,1992
3. Blakey N. C., Cossu R., Maris P. J. and Mosey F. E. (1992) Anaerobic lagoons and UASB reactors: laboratory experiments. In Landfilling of Waste: Leachate (Edited by Christensen T. H., Cossu R. and Stegmann R.), pp. 245–263. Elsevier Science Publishers Ltd., Essex
4. Biological treatability of landfill leachate;Boyle;J. WPCF,1974
5. Trace metals and anaerobic digestion of leachate;Cameron;J. WPCF,1980