NL
Anicii Manlii Severini Boethii De arithmetica
cura et studio Henrici Oosthout et Iohannis Schilling
Corpus christianorum, series Latina XCIV A
Brepols, 1999. ISBN 978 2 503 00943 8
Modes of knowledge and the transcendental
An introduction to Plotinus Ennead 5.3 [49] with a commentary and translation
Bochumer Studien zur Philosophie 17
Grüner, 1991. ISBN 978 90 6032 319 9
Wijsgerig taalgebruik in de redevoeringen van Gregorius van Nazianze tegen de achtergrond van de neoplatoonse metafysica
Philosophical language in the orations of Gregory of Nazianzus in the light of neoplatonic metaphysics
Dissertation (with summary in French), 1986. ISBN 90 900 1380 6
