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Drainage design factors : 28 questions and answers ; based on the expert consultation on drainage design factors, Rome, 22 - 29 october 1979
Dieleman, P. J., (1980)
Farmers' perceived costs of wetlands : effects of wetland size, hydration, and dispersion
Gelso, Brett R., (2008)
An analysis of the role of tile-drained farmland under alternative nitrogen abatement policies
Petrolia, Daniel R., (2006)