Hans Siegfried


, 1989, Self-presentation, in E. F. Kaelin & C. Schrag (eds.), American phenomenology, Dordrecht, Kluwer, pp. 282-287.

, 1983a, Contribution to the debate: Professor Wallulis on theory and emancipation, in A. Tymieniecka & C. Schrag (eds.), Foundations of morality, human rights, and the human sciences, Dordrecht, Reidel, pp. 275-280.