@article{478601,
      author = {Barth, E. M. and Martens, J. L.},
      url = {http://library.usi.edu/record/478601},
      title = {Argumentation approaches to theory formation : containing  the contributions to the Groningen Conference on the Theory  of Argumentation, October 1978 / [electronic resource] :.  Groningen Conference on the Theory of Argumentation},
      publisher = {J. Benjamins,},
      recid = {478601},
      pages = {xvii, 333 p. :},
      address = {Amsterdam :},
      year = {1982},
}