@phdthesis{Vu2023,
  author      = {Michael Vu},
  title       = {THE NONLOCAL NEUMANN PROBLEM},
  type        = {doctoralthesis},
  pages       = {129 Bl{\"a}tter},
  school      = {Universit{\"a}t Trier},
  doi       = {10.25353/ubtr-xxxx-3414-558a},
  year        = {2023},
}