Michael Schroeder Ralf Schweimeier Arguments and Misunderstandings: Fuzzy Unification for Negotiating Agents. 2002 70 Electr. Notes Theor. Comput. Sci. 5 http://www.elsevier.com/gej-ng/31/29/23/125/23/show/Products/notes/index.htt#002 db/journals/entcs/entcs70.html#SchroederS02