http://www.sec.gov/Archives/edgar/data/852555/000119312519011983/d688253d424b3.htm
http://www.sec.gov/Archives/edgar/data/19617/000119312519012162/d676915d424b2.htm
http://www.sec.gov/Archives/edgar/data/831001/000119312519012766/d689920d424b2.htm
http://www.sec.gov/Archives/edgar/data/230098/000119312519012925/d666782d424b2.htm