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G J A Nieuwenhuis Effect of perforation and filter material on entrance resistance and effective diameter of plastic drain pipes
Engels | 9 pagina's | ICW, Wageningen | 1979
Gedrukt boek
D. Boels A method to predict changes in hydraulic conductivity caused by drainage plows and backfilling of trenches
Engels | ICW, Wageningen | 1979
Gedrukt boek