Cattermole, P., & Moore, P. (1997). Atlas of Venus. Cambridge University Press.
Ley, Willy. Rockets, Missiles, and Space Travel (revised). New York: The Viking Press (1958)
McConnell, Brian S. (2002). Algorithmic Communication with ETI & Mixed Media Message Composition. O'Reilly, Cambridge, Massachusetts
McConnell, Brian S. (2001). Beyond Contact: A Guide to SETI and Communicating with Alien Civilizations. O'Reilly, Cambridge, Massachusetts
Morrison, P. Interstellar Communication, Bulletin of the Philosophical Society of Washington, 16, 78 (1962). Reprinted in A. G. W. Cameron, ed., Interstellar Communication.
Minsky, Marvin, talk given at Communication With Extraterrestrial Intelligence (CETI), Proceedings of a conference held at the Byurakan Astrophysical Observatory, Yerevan, USSR, 5–ngày 11 tháng 9 năm 1971. Edited by Carl Sagan. Cambridge, Massachusetts: The Massachusetts Institute of Technology, 1973. p. ix
