Text in book Clynes, Manfred E. ; Kline, Nathan S. – «Cyborgs and space». – The Cyborg handbook. – Edited by Chris Gray with Steven Mentor and Heidi J. Figueroa-Sarriera. – London : Routledge, 1995. – P. 29-33.
Text in book Clynes, Manfred E. – «Cyborg 2 : sentic space travel». – The Cyborg handbook. – Edited by Chris Gray with Steven Mentor and Heidi J. Figueroa-Sarriera. – London : Routledge, 1995. – P. 35-42.