Emadian, S,, Kuzulcan, M., Küçüker, M.A., Demirel, B., Onay, T.T., "Enzymatic Pretreatment of Chicken Manure for Improved Biogas Yield. ", Naddeo V et al, Frontiers in Water Energy Nexus Nature Based Solutions, Advanced Technologies and Best Practices for Environmental Sustainability, Springer, 2020.