BibTeX
@INCOLLECTION{
         Powell1978AFA,
       author = "Michael J. D. Powell",
       editor = "G. A. Watson",
       title = "A Fast Algorithm for Nonlinear Constrained Optimization Calculations",
       booktitle = "Numerical Analysis",
       series = "Lecture Notes in Mathematics",
       publisher = "Springer",
       address = "Berlin",
       key = "Powell1978AFA",
       referred = "[Haase2001OSo].",
       year = "1978",
       number = "630"
}