BibTeX
@INPROCEEDINGS{
         Ng1979GaJ,
       AUTHOR = "E. Ng and Bruce W. Char",
       TITLE = "Gradient and {Jacobian} computation for numerical applications",
       BOOKTITLE = "Proceedings of the 1979 Macsyma User's Conference",
       YEAR = "1979",
       EDITOR = "V. Ellen Golden",
       PAGES = "604--621",
       ORGANIZATION = "NASA, Washington, D.C.",
       MONTH = "June",
       REFERRED = "[Char1991CAa].",
       COMMENT = "Char -- Optimization techniques."
}