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2. Biogas recovery from olive-oil production waste by anaerobic digestion;Aveni,1983
3. Biogas recovery from olive-oil mill wastewater by anaerobic digestion;Aveni,1986
4. Anaerobic digestion of olive oil mill wastewaters;Boari;Agric. Wastes,1984
5. Anaerobic treatment of olive mills effluents and sewage sludge in conventional digesters;Carrieri,1986