Gerritzen, T. J. M. (1998). Voornamen. Onderzoek naar een aantal aspecten van naamgeving in Nederland. [Thesis, externally prepared, Universiteit van Amsterdam]. in eigen beheer.
Kroner, A. W. (1998). The debate between Miliukov and Maklakov on the chances for Russian liberalism. [Thesis, externally prepared, Universiteit van Amsterdam]. in eigen beheer.
de Nobel, W. T. (1998). Ecophysiology of the nitrogen-fixing cyanobacteria Anabaena and Aphanizomenon in relation to eutrophication. [Thesis, fully internal, Universiteit van Amsterdam].
Reede-Dekker, T. (1998). Life-history adaptations of Daphnia during a diel vertical migration period. [Thesis, fully internal, Universiteit van Amsterdam].
Leefmans, P. J. I. (1998). Externe milieubevoegdheden. Communautairrechtelijke grenzen aan externe milieubevoegdheden van de EG-lidstaten. [Thesis, fully internal, Universiteit van Amsterdam]. Kluwer.
Parlevliet, F. J. (1998). Calixarene based Phosphites and their use in Catalysis. [Thesis, fully internal, Universiteit van Amsterdam].
Bolech, M. (1998). Thermochemical properties of Lanthania and Ceria mixed with Silica and Zirconia: chemical behaviour of lanthanum and cerium in molten core-concrete interactions. [Thesis, externally prepared, Universiteit van Amsterdam].
Verdonck - de Leeuw, I. M. (1998). Voice characteristics following radiotherapy: the development of a protocol. [Thesis, fully internal, Universiteit van Amsterdam]. ICG printing.
Roon, A. M. (1998). Short-term cardiovascular effects of mental tasks: physiology, experiments and computer simulations. [Thesis, fully external, RUG].
Kuin, A. M. M. (1998). Preclinical studies with MIBG: potentiation of anticancer drug activity by tumor-selective acidification. [Thesis, externally prepared, Universiteit van Amsterdam]. in eigen beheer.