@article{458376,
      author = {Wratil, Melani. and Gallmann, Peter.},
      url = {http://library.usi.edu/record/458376},
      title = {Null pronouns [electronic resource] /},
      publisher = {De Gruyter Mouton,},
      recid = {458376},
      pages = {270 p.},
      address = {Berlin ;},
      year = {2011},
}