@article{LorenzMatthiasPieperetal.2019,
  author    = {Robert C. Lorenz and Katja Matthias and Dawid Pieper and Uta Elke Wegewitz and Johannes Morche and Marc Nocon and Olesja Rissling and Jaqueline Schirm and Anja Jacobs},
  title     = {A psychometric study found AMSTAR 2 to be a valid and moderately reliable appraisal tool},
  journal   = {Journal of Clinical Epidemiology},
  volume    = {114},
  pages     = {133 -- 140},
  doi       = {10.1016/j.jclinepi.2019.05.028},
  year      = {2019},
}