http://www.sec.gov/Archives/edgar/data/1665650/000095010319000686/dp101027_424b2-3p0121.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036119001184/form424b2.htm
http://www.sec.gov/Archives/edgar/data/1686719/000119312519010128/d652394d424b2.htm
http://www.sec.gov/Archives/edgar/data/19617/000119312519010366/d687927d424b2.htm
http://www.sec.gov/Archives/edgar/data/1409493/000119312519010638/d682994d424b5.htm
http://www.sec.gov/Archives/edgar/data/1487712/000119312519010693/d683788d424b2.htm