@phdthesis{Beiwinkel2018,
  author      = {Till Beiwinkel},
  title       = {Monitoring and improving mental health with internet- and mobile-based approaches},
  type        = {doctoralthesis},
  school      = {Leuphana Universit{\"a}t L{\"u}neburg, Universit{\"a}tsbibliothek der Leuphana Universit{\"a}t L{\"u}neburg},
  year        = {2018},
}