@phdthesis{Nguyen2018,
  author      = {Duy Van Nguyen},
  title       = {Quadratic Optimization: Copositive Modelling, Algorithms and Aspects of Duality},
  type        = {doctoralthesis},
  school      = {Universit{\"a}t Trier},
  doi       = {10.25353/UBTR-0451-5300-21XX},
  year        = {2018},
}