http://www.sec.gov/Archives/edgar/data/1654795/000104746917005961/a2233297z424b3.htm
http://www.sec.gov/Archives/edgar/data/1280600/000104746917005962/a2233342z424b5.htm
http://www.sec.gov/Archives/edgar/data/83246/000114420417048631/v475351_424b2.htm