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Hog-farm waste management : investment opportunities in Greece
Halvadakis, Constantinos P., (1988)
Biogas system planning : a techno-economic perspective
Lekakēs, Iōsēph N., (1990)
Development of a charcoal-fuelled dryer for the production of organic fertilizer from hog waste
Akinnuli, B. O., (2017)