@phdthesis{Simonsmeier2018,
  author      = {Bianca Simonsmeier},
  title       = {Environmental and Learner-Related Determinants of Knowledge Acquisition:Meta-Analytic and Longitudinal Analyses},
  type        = {doctoralthesis},
  school      = {Universit{\"a}t Trier},
  doi       = {10.25353/ubtr-xxxx-176f-5a1c/},
  year        = {2018},
}