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- Kingma Boltjes, T.Y. (author) doctoral thesis 1934
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- Coltof, W. (author) doctoral thesis 1934
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- Franken, H.A. (author) doctoral thesis 1934
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- Houwink, R. (author) doctoral thesis 1934
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- Mulder, J.G.W. (author) doctoral thesis 1934
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- Van Meeuwen, C. (author) doctoral thesis 1934
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- Emmen, J. (author) doctoral thesis 1934
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Steggewentz, J.H. (author)Method to calculate variations in groundwater level due to the tidal variation at sea and in tidal rivers. Research on groundwater flow and water pressure in ground water due to harmonic variations.doctoral thesis 1933
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- Gaillard, J. (author) doctoral thesis 1933
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- Van Berckel, F.W. (author) doctoral thesis 1933
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- Van Dalen, E. (author) doctoral thesis 1933
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- Barto, C.B. (author) doctoral thesis 1933
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- Tulleners, A.J. (author) doctoral thesis 1933
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- Schlingemann, J.G. (author) doctoral thesis 1933
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- Bakker Schut, F. (author) doctoral thesis 1933
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- Schouten, J.P. (author) doctoral thesis 1933
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- Pilaar, W.M.M. (author) doctoral thesis 1932
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- Van der Neut, A. (author) doctoral thesis 1932
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- Wildschut, A.J. (author) doctoral thesis 1932
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- Otten, G. (author) doctoral thesis 1932