http://enlightenment-revolution.org/index.php/Catherine_II,_the_Great
http://en.wikipedia.org/wiki/Russian_Enlightenment#Catherine_the_Great
http://web.ebscohost.com/ehost/detail?sid=86f5688b-1245-4d91-9e25-3fddea0c7b3a%40sessionmgr10&vid=1&hid=11&bdata=JnNpdGU9ZWhvc3QtbGl2ZQ%3d%3d#db=khh&AN=16260461
http://www.notablebiographies.com/Ca-Ch/Catherine-the-Great.html
http://www.guardian.co.uk/world/2006/jun/02/russia.books
http://departments.kings.edu/womens_history/catherine2.html
http://www.independent.co.uk/news/world/europe/voltaire-and-catherine-the-great-a-pair-of-unlikely-penpals-480746.html
http://en.wikipedia.org/wiki/Jean-Jacques_Rousseau
http://www.academicapress.com/node/102
http://www.thenagain.info/webchron/easteurope/cathygreat.html
http://answers.yahoo.com/question/index?qid=20120613194401AAoBHuy
http://russiapedia.rt.com/prominent-russians/the-romanov-dynasty/catherine-ii-the-great/
http://www.history.co.uk/biographies/catherine-the-great.html
http://en.wikipedia.org/wiki/Russian_Enlightenment#Catherine_the_Great
http://web.ebscohost.com/ehost/detail?sid=86f5688b-1245-4d91-9e25-3fddea0c7b3a%40sessionmgr10&vid=1&hid=11&bdata=JnNpdGU9ZWhvc3QtbGl2ZQ%3d%3d#db=khh&AN=16260461
http://www.notablebiographies.com/Ca-Ch/Catherine-the-Great.html
http://www.guardian.co.uk/world/2006/jun/02/russia.books
http://departments.kings.edu/womens_history/catherine2.html
http://www.independent.co.uk/news/world/europe/voltaire-and-catherine-the-great-a-pair-of-unlikely-penpals-480746.html
http://en.wikipedia.org/wiki/Jean-Jacques_Rousseau
http://www.academicapress.com/node/102
http://www.thenagain.info/webchron/easteurope/cathygreat.html
http://answers.yahoo.com/question/index?qid=20120613194401AAoBHuy
http://russiapedia.rt.com/prominent-russians/the-romanov-dynasty/catherine-ii-the-great/
http://www.history.co.uk/biographies/catherine-the-great.html