Klaus Volkert


, 2008, 'La mathématique et le pathologique', Philosophia Scientiae 12 (2), 65-74.

, 1992, Mathematical progress as synthesis of intuition and calculus, in L. Boi, D. Flament & J. Salanskis (eds.), 1830–1930: a century of geometry, Dordrecht, Springer, pp. 192-198.

, 1986a, Die Krise der Anschauung, Vandenhoeck & Ruprecht, Göttingen.