BibTeX
@ARTICLE{
         Christianson1999ADa,
       author = "Bruce Christianson",
       title = "Automatic Differentiation and {P}antoja's Algorithm",
       journal = "Optimization Methods and Software",
       pages = "729--743",
       key = "Christianson1999ADa",
       referred = "[Christianson2001GoP].",
       year = "1999",
       volume = "10",
       number = "1"
}