Scott Shane, "Ex-White House Scientist Pleads Guilty in Spy Case Tied to Israel," New York Times, September 8, 2011, p A22 (web versionArchived 2017-10-16 at the Wayback Machine)
Toby Harnden, "Top US scientist accused of trying to spy for Israel," The Daily Telegraph, 19 October 2009(web versionArchived 2019-07-10 at the Wayback Machine, retrieved 19 October 2009).
usra.edu
lpi.usra.edu
Stewart Nozette, "The Clementine Mission" Abstracts of the Lunar and Planetary Science Conference, Vol 26, 1995, p. 1061, doi:1995LPI....26.1061N (web versionArchived 2012-10-25 at the Wayback Machine)
washingtontimes.com
Jim McElhatton, "Prominent scientist pleads guilty to attempted espionage," Washington Times," Sept 7, 2011. web versionArchived 2011-09-08 at the Wayback Machine
Stewart Nozette, "The Clementine Mission" Abstracts of the Lunar and Planetary Science Conference, Vol 26, 1995, p. 1061, doi:1995LPI....26.1061N (web versionArchived 2012-10-25 at the Wayback Machine)
Toby Harnden, "Top US scientist accused of trying to spy for Israel," The Daily Telegraph, 19 October 2009(web versionArchived 2019-07-10 at the Wayback Machine, retrieved 19 October 2009).
Jim McElhatton, "Prominent scientist pleads guilty to attempted espionage," Washington Times," Sept 7, 2011. web versionArchived 2011-09-08 at the Wayback Machine
Scott Shane, "Ex-White House Scientist Pleads Guilty in Spy Case Tied to Israel," New York Times, September 8, 2011, p A22 (web versionArchived 2017-10-16 at the Wayback Machine)