@article{ReikeSchwarz2019,
  author    = {Dennis Reike and Wolfgang Schwarz},
  title     = {Categorizing digits and the mental number line},
  journal   = {Attention, perception, \& psychophysics : AP\&P ; a journal of the Psychonomic Society, Inc.},
  volume    = {81},
  number    = {3},
  pages     = {614 -- 620},
  doi       = {10.3758/s13414-019-01676-w},
  year      = {2019},
}