1. Campbell, S. (2012). The early Heidegger’s philosophy of life. New York: Fordham University Press.
2. Cooper, D. E. (2005). Heidegger on nature. Environmental Values,14(3), 339–351.
3. Crowe, B. (2006). Heidegger’s religious origins. Bloomington: Indiana University Press.
4. Crowell, S. (2005). Subjectivity: Locating the first-person in being and time. In R. Polt (Ed.), Heidegger’s being and time: Critical essays (pp. 117–139). Lanham, MD: Rowman & Littlefield.
5. Dreyfus, H. (1992). Heidegger’s history of the being of equipment. In H. L. Dreyfus & H. Hall (Eds.), Heidegger: A critical reader (pp. 173–185). Oxford: Blackwell.