1. Modello matematico di produzione del biogas in uno scarico controllato (mathematical model of biogas production);Andreottola;Rifiuti Solidi,1988
2. EMCON Associates. Methane Generation and Recovery from Landfills. Ann Arbor, MI: Ann Arbor Science Publishers, 1980.
3. El-Fadel MA. Modeling Gas and Heat Generation and Transport in Sanitary Landfills. PhD Thesis, UMI Dissertation Services, 1991.
4. Gas production from solid waste in landfills;De Walle;J Environ Eng Div,1978
5. Tchobanoglous G, Theisen H, Vigil SA. Integrated Solid Waste Management. McGraw–Hill, 1993.