@article{HanfHirtAkker2021,
  author    = {Maria Hanf and Julian Hirt and Marjan van den Akker},
  title     = {Primary care professionals' attitudes towards digital health interventions for common mental disorders: study protocol for a mixed methods systematic review},
  journal   = {BMJ open},
  volume    = {11},
  number    = {6, art. e045657},
  pages     = {1 -- 6},
  doi       = {10.1136/bmjopen-2020-045657},
  year      = {2021},
}