http://www.sec.gov/Archives/edgar/data/1000275/000114036115044004/form424b2.htm
http://www.sec.gov/Archives/edgar/data/917251/000114420415069991/v426461_424b5.htm
http://www.sec.gov/Archives/edgar/data/1550453/000119312515398272/d74084d424b3.htm
http://www.sec.gov/Archives/edgar/data/1403161/000119312515398364/d18331d424b2.htm
http://www.sec.gov/Archives/edgar/data/1070750/000119312515398486/d102406d424b7.htm