P. Vakalis

发表

Economic benefit from irrigation of cotton and corn with treated wastewater

C. Tsadilas, P. Vakalis, 2003 .

Influence of Amelioration of Strongly Acid Soils with Calcareous Materials and Sewage Sludge on Wheat Yield and Economic Results

C. Tsadilas, P. Vakalis, I. Sgouras, 2005 .