http://www.sec.gov/Archives/edgar/data/1323468/000104746915005354/a2225029z424b5.htm
http://www.sec.gov/Archives/edgar/data/1609234/000114420415036353/v412693_424b3.htm
http://www.sec.gov/Archives/edgar/data/715957/000119312515218823/d937369d424b2.htm
http://www.sec.gov/Archives/edgar/data/1109357/000119312515218993/d937171d424b2.htm