Zaoesskaja, O. K. (1998). Literatuur en muziek. De 4e symfonie van Andrej Bely. [Thesis, fully internal, Universiteit van Amsterdam]. in eigen beheer.
Jager, J. H. (1998). Tussen Rusland en Europa. Russische debatten over de intelligentsia, de staat en de natie in de jaren 1908-1912. [Thesis, fully internal, Universiteit van Amsterdam]. in eigen beheer.
Beekman, M. (1998). The bumblebee life cycle: Overwintering and colony growth of Bombus terrestris. [Thesis, fully internal, ISP]. UvA.
Lesna, I. K. A. (1998). Bulb mite biocontrol: evolutionary genetics of prey choice in soil predators. [Thesis, fully internal, ISP]. UvA.
Pallini, A. (1998). Odour-mediated indirect interactions in an arthropod food web. [Thesis, fully internal, ISP]. UvA.
Kroon, A. (1998). Photoperiodic induction and termination of diapause in the spider mite Tetranychus urticae. [Thesis, fully internal, ISP]. UvA.
van der Weide, W. E. (1998). Quality of occupational rehabilitation for low-back pain. Measurement of process and outcome. [Thesis, fully internal, Universiteit van Amsterdam].
Schuddeboom, P. C. (1998). Orientation of liquid crystal molecules at surfaces. [Thesis, externally prepared, Universiteit van Amsterdam].
Klijnstra, M. (1998). Openbaarheid in het milieurecht. [Thesis, fully internal, Universiteit van Amsterdam]. W.E.J. Tjeenk Willink.
Brussaard, P. (1998). Superfluid Phases in a Repulsive Fermi System and Liquid Helium Three. [Thesis, fully internal, Universiteit van Amsterdam].