1. Heidegger, Martin. 1993. Basic Writings: Revised & Expanded Edition, edited by David Farrell Krell. San Francisco: Harper.
2. Heidegger, Martin. 2000. Elucidations of Holderin’s Poetry, Translated by Keith Hoeller. New York: Humanity Books.
3. Heidegger, Martin. 2002. Off the Beaten Track, Edited and Translated by Julian Young, and Kenneth Haynes. Cambridge: Cambridge University Press.
4. Heidegger, Martin. 2012. Bremen and Freiburg Lectures: Insight Into That Which Is and Basic Principles of Thinking. Translated by Andrew J. Mitchell. Bloomington: Indiana University Press.
5. Husserl, Edmund. 1970. The Crisis of European Sciences and Transcendental Phenomenology: An Introduction to Phenomenological Philosophy. Translated by David Carr. Evanston: Northwestern University Press.