Logo der AK Steel Corporation
Unknown author<span style="display: none;">Unknown author</span>
<a rel="nofollow" class="external free" href="http://www.aksteel.com/data/financial_stmts/AK%20Steel%2010-K%20web_April9_2012.pdf">http://www.aksteel.com/data/financial_stmts/AK%20Steel%2010-K%20web_April9_2012.pdf</a>