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- De Vries, S. (author) doctoral thesis 2013
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De Vries, M. (author)The quantitative determination of bed-material-transport by means of tracers has been considered. For a stationary-stochastical transport-condition the dispersion of tracers has been described by a diffusion-equation of the gradienttype. The parameters of the dispersion-model are derived from the measured concentrations by a least-squares...doctoral thesis 1966