http://www.sec.gov/Archives/edgar/data/1053092/000095010318006541/dp91388_424b2-u2974.htm
http://www.sec.gov/Archives/edgar/data/839923/000104746918004073/a2235857z424b2.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036118025707/form424b2.htm
http://www.sec.gov/Archives/edgar/data/92230/000119312518174392/d586490d424b5.htm
http://www.sec.gov/Archives/edgar/data/1659323/000119312518175433/d522368d424b4.htm
http://www.sec.gov/Archives/edgar/data/928022/000119312518175473/d584812d424b5.htm