@article{479546,
      author = {Lieb, Hans-Heinrich.},
      url = {http://library.usi.edu/record/479546},
      title = {Linguistic variables towards a unified theory of  linguistic variation / [electronic resource] :},
      publisher = {John Benjamins Pub. Co.,},
      recid = {479546},
      pages = {xiv, 261 p.},
      address = {Amsterdam ;},
      year = {1993},
}