1
2
3
[Referat anläßlich der Jahrestagung der Vereniging Algemene Taalwetenschap in Nederland, Amsterdam, 26.1.1974]
4
papers from the "3rd Groningen Grammar Talks", Groningen, January 1981
1983
7
[eine Einführung]
9
contributions to an understanding of linguistics ; for Pieter Verburg on the occasion of his 70th birthday
1975