Augusteijn, T. (1994). Optical observations of close binary systems with a compact component. [Thesis, fully internal, Universiteit van Amsterdam].
Heemskerk, M. H. M. (1994). On Gaseous Discs around Stars. [Thesis, fully internal, Universiteit van Amsterdam].
Fokkink, W. J. (1994). Clocks, Trees and Stars in Process Theory. [Thesis, internally prepared, Universiteit van Amsterdam]. Institute for Logic, Language and Computation.
Goudfrooy, P. (1994). Dust and Ionized gas in Elliptical Galaxies. [Thesis, fully internal, Universiteit van Amsterdam].
Coesèl, M. (1993). Zinkviooltjes en zoetwaterwieren. J. Heimans (1889-1978) Natuurstudie en natuurbescherming in Nederland. [Thesis, externally prepared, Universiteit van Amsterdam].
de Rijke, M. (1993). Extending modal logic. [Thesis, fully internal, Universiteit van Amsterdam]. Institute for Logic, Language and Computation.
Tromp, J. T. (1993). Aspects of algorithms and complexity. [Thesis, fully internal, Universiteit van Amsterdam].
Steenvoorden, R. J. J. M. (1993). Photo ionization time of flight mass spectrometry applied to organic molecules. [Thesis, fully internal, Universiteit van Amsterdam].
Coté, J. (1993). Formation and mass loss of be stars. [Thesis, fully internal, Universiteit van Amsterdam]. Sterrenkundig Instituut Anton Pannekoek.
van Kerkwijk, M. H. (1993). The mass of Vela X-1 the nature of Cygnus X-3 the character of Be stars. [Thesis, fully internal, Universiteit van Amsterdam].
