2006a
Complementizer agreement and dependency marking typology
Leiden Working Papers in Linguistics 3.2, 53-72.

2006b
Local agreement
In Agreement systems, C. Boeckx, ed.
John Benjamins, Amsterdam/Philadelphia, pp. 317-339.
(Linguistik Aktuell/Linguistics Today 92)

2006c
Book notice of G.J. Luhrmann, Studies in humanist and rational grammar (Münster: Nodus Publikationen, 2006).
Historiographia Linguistica 33.3, 447-448.

2006d
Over het enten van interpolaties
TABU 35.3/4, 163-180.
[On the graft analysis of interpolations]