, 1987, Conscience and moral responsibility, in A. Tymieniecka (ed.), Morality within the life - and social world, Dordrecht, Reidel, pp. 239-244.
, 1983, Die Bedeutung des Gewissens für eine Leibhafte Verwirklichung von Sittlichkeit, in A. Tymieniecka (Hrsg.), Soul and body in Husserlian phenomenology, Dordrecht, Kluwer, pp. 259-266.
, 1974, Moral autonomy in Kant and Hegel, in J. J. O'malley, K. W. . Algozin & F. Weiss (eds.), Hegel and the history of philosophy, Dordrecht, Springer, pp. 141-158.
, 1972a, The problem of truth in the "critique of pure reason", in L. White Beck (ed.), Proceedings of the Third international Kant congress, Dordrecht, Springer, pp. 316-321.