http://www.sec.gov/Archives/edgar/data/1053092/000095010319004925/dp105310_424b2-k1228.htm
http://www.sec.gov/Archives/edgar/data/1604821/000104746919002388/a2238532z424b5.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036119007308/form424b2.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036119007310/form424b2.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036119007320/form424b2.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036119007327/form424b2.htm
http://www.sec.gov/Archives/edgar/data/1585521/000119312519110919/d642624d424b4.htm
http://www.sec.gov/Archives/edgar/data/1305253/000119312519110948/d632378d424b5.htm
http://www.sec.gov/Archives/edgar/data/1506293/000119312519111067/d697629d424b4.htm
http://www.sec.gov/Archives/edgar/data/1455863/000119312519111079/d727788d424b2.htm