a. „Alfred North Whitehead: Relativistische Kosmologie“, in: J. Speck (Hg.), Grundprobleme der großen Philosophen, Gegenwart I, 3. Auflage, Göttingen: Vandenhoeck, 1985, 269-312.

Nicht nur in ihren Aufgabenstellungen, sondern auch in deren vorläufiger Lösung setzt Whiteheads relativistische Kosmologie neue Maßstäbe.

b. „A. N. Whitehead’s Basic Philosophical Problem: The Development of a Relativistic Cosmology“, in: Process Studies 16 (1987), 1-25.

Without a doubt, Whitehead offers the best developed solution to his basic philosophical problem in his major work, Process and Reality. If we want to determine the direction and goal of Whitehead’s theoretical development as well as this development’s definitive contributions to systematic philosophy and to the history of philosophy, then we cannot avoid dealing with this text, in spite of its density and the difficulties connected with its reception.