, 1999, Grammar and truth: on Nietzsche's relationship to the speculative sentential grammar of the metaphysical tradition, in B. Babich (ed.), Nietzsche, theories of knowledge, and critical theory I, Dordrecht, Springer, pp. 129-151.
, 1977, 'Language and some aspects of the problem of truth', Graduate Faculty Philosophy Journal 6 (2), 181-200.
, 1974, Phenomena and noumena: on the use and meaning of the categories, in L. White Beck (ed.), Kant's theory of knowledge, Dordrecht, Springer, pp. 45-51.
with Apel, K.-O. (eds) , 1974, Aspekte und Probleme der Sprachphilosophie, Alber, Freiburg-München.
, 1971a, '"Daseiender" und "Absoluter" Geist: Diskussionsbemerkungen zu "Hegels Deutung der Sprache"', Zeitschrift für philosophische Forschung 25 (2), 307-315.