Search for Strongly Polarized Radio Emission from E.T.I. and an Optimistic Approach to the Great Silence (Fermi's Paradox)

VALLEE, J.P., "Search for Strongly Polarized Radio Emission from E.T.I. and an Optimistic Approach to the Great Silence (Fermi's Paradox)," The Search for Extraterrestrial Life: Recent Developments, M.D. Papagiannis (ed.), D. Reidel Publishing Co., Dordrecht, pp. 321-325 (1985).