(en) Landis, « Colonization of Venus », Conference on Human Space Exploration, Space Technology & Applications International Forum, Albuquerque NM, vol. 654, feb 2–6, 2003, p. 1193–1198 (DOI10.1063/1.1541418, Bibcode2003AIPC..654.1193L) ; draft version ofthe full paper[PDF]available at NASA Technical Reports Server (accessed 16 May 2012).
(en) Landis, « Colonization of Venus », Conference on Human Space Exploration, Space Technology & Applications International Forum, Albuquerque NM, vol. 654, feb 2–6, 2003, p. 1193–1198 (DOI10.1063/1.1541418, Bibcode2003AIPC..654.1193L) ; draft version ofthe full paper[PDF]available at NASA Technical Reports Server (accessed 16 May 2012).
(en) Dale Arney et Chris Jones « HAVOC: High Altitude Venus Operational Concept - An Exploration Strategy for Venus » () (lire en ligne) —SPACE 2015: AIAA Space and Astronautics Forum and Exposition. 31 August-2 September 2015. Pasadena, California
(en) Landis, « Colonization of Venus », Conference on Human Space Exploration, Space Technology & Applications International Forum, Albuquerque NM, vol. 654, feb 2–6, 2003, p. 1193–1198 (DOI10.1063/1.1541418, Bibcode2003AIPC..654.1193L) ; draft version ofthe full paper[PDF]available at NASA Technical Reports Server (accessed 16 May 2012).