Published Review of Wastewater Reuse in the Mediterranean Countries, Focusing on Regulations and Policies for Municipal and Industrial Applications by Kellis M., Kalavrouziotis I.K. and Gikas P. 333-350_15-3_936_Kalavrouziotis.pdf
Published Anaerobic treatment of sewage sludge and grease trap sludge in continuous co-digestion by Neczaj E., Bien J., Grosser A., Worwag G. and Kacprzak M. 141-148_851_NRG_02_Neczaj_14-2.pdf