Published Modeling the relationship among energy demand, CO2 emissions and economic development: A survey for the case of Greece by Hatzigeorgiou E. , Polatidis H. and Haralambopoulos D. 942_published.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