@Article{BostonHaleVasishthKliegl2011,
  author = 	 {Marisa Ferrara Boston and John T. Hale and Shravan Vasishth and Reinhold Kliegl},
  title = 	 {Parallel processing and sentence comprehension difficulty},
  journal = 	 {Language and Cognitive Processes},
  year = 	 {2011},
  volume =       {26},
  issue =        {3},
  pages =        {301--349}
}