BibTeX
@ARTICLE{
         Christianson2018P,
       crossref = "Christianson2018Sio",
       author = "Bruce Christianson and Shaun A. Forth and Andreas Griewank",
       title = "Preface",
       journal = "Optimization Methods \& Software",
       volume = "33",
       number = "4--6",
       pages = "671--671",
       year = "2018",
       publisher = "Taylor \& Francis",
       doi = "10.1080/10556788.2018.1486553",
       url = "https://www.tandfonline.com/doi/abs/10.1080/10556788.2018.1486553",
       eprint = "https://www.tandfonline.com/doi/pdf/10.1080/10556788.2018.1486553",
       booktitle = "Special issue of Optimization Methods \& Software: Advances in
         Algorithmic Differentiation",
       editor = "Bruce Christianson and Shaun A. Forth and Andreas Griewank",
       ad_theotech = "General"
}