http://www.sec.gov/Archives/edgar/data/1053092/000095010317000014/dp71640_424b2-u1887.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036117000073/form424b2.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036117000099/form424b5.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036117000104/form424b2.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036117000157/form424b2.htm
http://www.sec.gov/Archives/edgar/data/40729/000114420417000124/v456094_424b2.htm
http://www.sec.gov/Archives/edgar/data/40729/000114420417000151/v456112_424b2.htm