BibTeX
@TECHREPORT{
         Hebden1973AAf,
       author = "M.~D.~Hebden",
       title = "An Algorithm for Minimization using Exact Second Derivatives",
       number = "{T}{P}515",
       institution = "{A}tomic {E}nergy {R}esearch {E}stablishment",
       address = "Harwell, England",
       year = "1973"
}