Pelton, J N, Bukley, A P. 2010, The farthest shore: a 21s century guide to space, Apogee Books.

Bukley, A., Peeters W. et al  , Private Human Access to Space, Vol.1 Suborbital Flights , June 2014, IAA report SG 3.9, ISBN number : 978-2-917761-35-9.

Peer-reviewed articles

Clément G, Bukley A (2014) Human space exploration – From surviving to performing. Acta Astronautica 100: 101-106.