@Misc{Riv09b,
  author = 	 { Ronald L. Rivest },
  title = 	 { Perspectives on {E2E} Voting Systems },
  howpublished = { Keynote talk given at NIST End-to-End Voting Systems Workshop on
                   October 13, 2009 
                 },
  date =         { 2009-10-13 },                  
  OPTyear = 	 { 2009 },
  OPTmonth = 	 { October 13, },
}