http://www.sec.gov/Archives/edgar/data/1744894/000104746918007526/a2237261z424b3.htm
http://www.sec.gov/Archives/edgar/data/1622353/000114420418063620/tv508652-424b2.htm
http://www.sec.gov/Archives/edgar/data/894315/000119312518345030/d603519d424b5.htm