@phdthesis{Zimmermann2019,
  author      = {Dirk Zimmermann},
  title       = {An understudied species: Understanding therapists and their impact on psychotherapy},
  type        = {doctoralthesis},
  school      = {Universit{\"a}t Trier},
  doi       = {10.25353/ubtr-xxxx-88c4-def0},
  year        = {2019},
}