@Misc{BR96,
  author = 	 { R[obert] Baldwin and R[onald L.] Rivest },
  title = 	 { The {RC5, RC5-CBC, RC5-CBC-Pad, and RC5-CTS} Algorithms },
  howpublished = { Internet Network Working Group Request for Comments: RFC 2040 },
  date =         { 1996-10 },                  
  OPTmonth = 	 { October },
  OPTyear = 	 { 1996 },
  url =          { http://www.ietf.org/rfc/rfc2040.txt },
}