http://www.sec.gov/Archives/edgar/data/1000275/000114036116079819/form424b2.htm
http://www.sec.gov/Archives/edgar/data/104819/000119312516708661/d254067d424b5.htm
http://www.sec.gov/Archives/edgar/data/1683001/000119312516709586/d241059d424b5.htm
http://www.sec.gov/Archives/edgar/data/858877/000119312516709808/d254591d424b2.htm