Bibliographie
"Caspar David Friedrich Biography." Caspar David Friedrich Biography. N.p., n.d. Web. 18 Feb. 2015.
"Gerhard Richter." Wikipedia. Wikimedia Foundation, n.d. Web. 19 Feb. 2015.
"Johannes Gutenberg-Biography." Bio.com. A&E Networks Television, n.d. Web. 18 Feb. 2015
Kellner, Charlotte L. "Alexander Von Humboldt | Biography - German Explorer and Naturalist."
Encyclopedia Britannica Online. Encyclopedia Britannica, 23 June 2014. Web. 22 Feb. 2015.
"Lilienthal Glider." California Science Center. California Science Center, n.d. Web. 22 Feb. 2015.
Staff, Ars. "Baer’s Odyssey: Meet the Serial Inventor Who Built the World’s First Game Console." The Complete Works. N.p., n.d. Web. 22 Feb. 2015.
Carl Peters." Wikipedia. Wikimedia Foundation, n.d. Web. 22 Feb. 2015.
Sonstige Angaben
Webseiten
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