@article{RyoJeschkeRilligetal.2019,
  author    = {Masahiro Ryo and Jonathan M. Jeschke and Matthias C. Rillig and Tina Heger},
  title     = {Machine learning with the hierarchy-of-hypotheses (HoH) approach discovers novel pattern in studies on biological invasions},
  journal   = {Research synthesis methods},
  volume    = {11},
  number    = {1},
  pages     = {66 -- 73},
  doi       = {10.1002/jrsm.1363},
  year      = {2019},
}