Published Economic Evaluation of Small Capacity Sewage Processing Units by Gratziou M.K.,Tsalkatidou M., and Kotsovinos N.E. paper_9_GRATZIOU_387.pdf
Published Estimation of future methane production from Hellenic landfills by Tsatsarelis T. and Karagiannidis A. 162-171_11-2_591_Tsatsarelis.pdf