@article{431152,
      author = {Roby, David Brian,},
      url = {http://library.usi.edu/record/431152},
      title = {Aspect and the categorization of states the case of ser  and estar in Spanish / [electronic resource] :},
      publisher = {John Benjamins Pub. Co.,},
      recid = {431152},
      pages = {xii, 191 p. :},
      address = {Philadelphia :},
      year = {2009},
}