@TechReport{BO97,
    Author       = "Bull, J. and Otway, D.J.",
    Year         = "1997",
    Title        = "{The Authentication Protocol}",
    Number       = "DRA/CIS3/PROJ/CORBA/SC/1/CSM/436-04/03",
    Institution  = "Defence Research Agency",
    Comment      = "TPTPRef"
}