1. Anaerobic digester performance at Hanford Farms, Dorchester;Brewer;Report carried out under contract for the Energy Technology Support Unit (ETSU),1994
2. Methane recovery from animal manures, a current opportunities casebook;Lusk,1994
3. Anaerobic digestion of agricultural wastes, the economics lie in the effluent uses;Marchaim,1983
4. Safeguards against pathogens in Danish biogas plants;Bendixen,1994
5. Update on Centralized Biogas Plants;Danish Energy Agency,1992