@article{KeuleersBrysbaertNew2012,
  author    = {Emmanuel Keuleers and Marc Brysbaert and Boris New},
  title     = {An evaluation of the Google Books ngrams for psycholinguistic research},
  journal   = {Potsdam cognitive science series},
  number    = {3},
  pages     = {23 -- 26},
  year      = {2012},
}