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- Van Heurn, F.C. (author) doctoral thesis 1922
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- Derx, H.G. (author) doctoral thesis 1922
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- Van Thiel, E. (author) doctoral thesis 1922
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- Van Groningen, P. (author) doctoral thesis 1921
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- Schonebaum, C.W. (author) doctoral thesis 1921
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- Hisschemöller, F.W. (author) doctoral thesis 1921
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- Borren, J.J. (author) doctoral thesis 1921
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- Gerretsen, F.C. (author) doctoral thesis 1921
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- Couvert, H. (author) doctoral thesis 1921
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- Lely, C.W. (author) doctoral thesis 1921
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- Pohlmann, J. (author) doctoral thesis 1920
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- Maitland, C.E.A. (author) doctoral thesis 1920
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- Van Beusekom, H.G. (author) doctoral thesis 1920
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- Meijer, W.M. (author) doctoral thesis 1920
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- Van Haeften, F.E. (author) doctoral thesis 1920
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- Coster van Voorhout, A.W. (author) doctoral thesis 1919
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- Manders, J.H.M. (author) doctoral thesis 1919
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- Van Loon, C. (author) doctoral thesis 1919
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- Hoeffelman, G.E. (author) doctoral thesis 1919
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- Lely, U.Ph. (author) doctoral thesis 1918