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WikiPedia: Siemens_AG http://www.bloomberg.com/apps/news?pid=20601100&si... http://deutsche-boerse.com/dbag/dispatch/en/isg/gd... http://finapps.forbes.com/finapps/jsp/finance/comp... http://w1.siemens.com/annual/07/en/index/key_figur... http://www.siemens.com/ https://www.nyse.com/quote/XNYS:SI https://commons.wikimedia.org/wiki/Category:Siemen...