Freitas, Robert A. "Medical Nanorobotics: Breaking the Trance of Futility in Life Extension Research (A Reply to de Grey)" Studies in Ethics, Law, and Technology, 1.1 (2007): -. Retrieved 24 May. 2013, from doi:10.2202/1941-6008.1022

Freitas, R. (2007). Medical Nanorobotics: Breaking the Trance of Futility in Life Extension Research (A Reply to de Grey). Studies in Ethics, Law, and Technology, 1(1), pp. -. Retrieved 24 May. 2013, from doi:10.2202/1941-6008.1022

Freitas, Robert A. 2007. Medical Nanorobotics: Breaking the Trance of Futility in Life Extension Research (A Reply to de Grey). Studies in Ethics, Law, and Technology. 1(1): -. Retrieved 24 May. 2013, from doi:10.2202/1941-6008.1022