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"Albert Einstein." Bio.com. A&E Networks Television. Web. 09 May 2016. <http://www.biography.com/people/albert-einstein-9285408>.
Shmoop Editorial Team. "Albert Einstein Timeline of Important Dates."Shmoop.com. Shmoop University, Inc., 2008. Web. 09 May 2016. <http://www.shmoop.com/albert-einstein/timeline.html>.
"Albert Einstein - Biographical." Albert Einstein - Biographical. Web. 09 May 2016. <http://www.nobelprize.org/nobel_prizes/physics/laureates/1921/einstein-bio.html>.
History.com Staff. "Albert Einstein." History.com. A&E Television Networks, 2009. Web. 09 May 2016. <http://www.history.com/topics/albert-einstein>.
"Albert Einstein." Bio.com. A&E Networks Television. Web. 09 May 2016. <http://www.biography.com/people/albert-einstein-9285408>.