Published Economic Evaluation of Small Capacity Sewage Processing Units by Gratziou M.K., Tsalkatidou M., Kotsovinos N.E. paper_9_GRATZIOU_387.pdf
Published Drops for crops: modelling crop water productivity on a global scale by Liu J., Zehnder A.J.B., Yang H. 295_300_486_LIU_10-3.pdf