http://www.sec.gov/Archives/edgar/data/1541354/000101968714003108/twin_424b3.htm
http://www.sec.gov/Archives/edgar/data/4969/000110465914060367/a14-18947_3424b2.htm
http://www.sec.gov/Archives/edgar/data/4969/000110465914060370/a14-18947_4424b2.htm
http://www.sec.gov/Archives/edgar/data/1549848/000119312514307026/d767658d424b4.htm
http://www.sec.gov/Archives/edgar/data/1502366/000119312514307690/d774291d424b3.htm
http://www.sec.gov/Archives/edgar/data/1409970/000140997014001013/salessup_20140812.htm