The International Colloquium, taking into account its objectives and in particular the need to promote a broad and fruitful debate, will bring together experts in logic and argumentation theory from several countries around the world, with different perspectives and views on these matters.
Frans H. van Eemeren (University of Amsterdam, The Netherlands)
Alec Fisher (University of East Anglia, Norwich, UK). CV not institutionally available. See a list of Professor Fisher's books: http://www.goodreads.com/author/show/223970.Alec_Fisher
António Fidalgo (University of Beira Interior, Covilhã, Portugal)