@techreport {TR-1994-017,
   type = {Technical Report},
   author = {Arthur Farley, Kathleen Freeman},
   title = {Burden of Proof in a Computational Model of Argumentation},
   institution = {University of Oregon, Computer and Information Sciences Department},
   number = TR-1994-017,
   month = 7,
   year = 1994,
   note = {Available at \url{https://www.cs.uoregon.edu/Reports/TR-1994-017.pdf}},
}