http://www.sec.gov/Archives/edgar/data/70502/000007050214000455/fps331.htm
http://www.sec.gov/Archives/edgar/data/70502/000007050214000456/pps332.htm
http://www.sec.gov/Archives/edgar/data/40729/000114420414042771/v383807_424b2.htm
http://www.sec.gov/Archives/edgar/data/72971/000119312514267258/d747047d424b2.htm
http://www.sec.gov/Archives/edgar/data/1282663/000119312514267830/d759152d424b5.htm
http://www.sec.gov/Archives/edgar/data/886158/000157104914002985/t1401288-424b3.htm