@article{460388,
      author = {Vet, Co. and Vetters, Carl,},
      url = {http://library.usi.edu/record/460388},
      title = {Tense and aspect in discourse [electronic resource] /},
      publisher = {M. de Gruyter,},
      recid = {460388},
      pages = {vi, 295 p. :},
      address = {Berlin ;},
      year = {1994},
}