http://www.sec.gov/Archives/edgar/data/81033/000089109217008749/e76778_424b5.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036117044902/form424b2.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036117044951/form424b2.htm
http://www.sec.gov/Archives/edgar/data/1003410/000119312517360885/d507079d424b3.htm
http://www.sec.gov/Archives/edgar/data/1053507/000119312517360899/d474814d424b5.htm
http://www.sec.gov/Archives/edgar/data/25598/000156761917002408/s001984x1_424b3.htm