1. Contributions to a British Association Discussion on the Evolution of the Universe;Lemaître,;Nature,1931
2. Wilkinson Microwave Anisotropy Probe. NASA Web site. http://map.gsfc.nasa.gov/universe/WMAP_Universe.pdf. Accessed November 16, 2009.
3. CSE Mission. Council of Science Editors Web site. http://www.councilscienceeditors.org/about/mission.cfm. Accessed November 16, 2009.