BibTeX
@ARTICLE{
         Alexe2009Otd,
       title = "On the discrete adjoints of adaptive time stepping algorithms",
       journal = "Journal of Computational and Applied Mathematics",
       volume = "233",
       number = "4",
       pages = "1005--1020",
       year = "2009",
       issn = "0377-0427",
       doi = "DOI: 10.1016/j.cam.2009.08.109",
       url =
         "http://www.sciencedirect.com/science/article/B6TYH-4X3W463-5/2/91c25f6f624682c4f6a4ada08b5a4d58",
       author = "Mihai Alexe and Adrian Sandu",
       keywords = "Ordinary differential equations (ODEs)",
       ad_theotech = "Adjoint"
}