@phdthesis{Wagner2019,
  author      = {Julian Wagner},
  title       = {Optimization Methods and Large-Scale Algorithms in Small Area Estimation},
  type        = {doctoralthesis},
  school      = {Universit{\"a}t Trier},
  doi       = {10.25353/UBTR-8441-5477-11XX},
  year        = {2019},
}