@Article{         Copi1967-COPROE,
  Author        = "Copi, Irving M. and Elgot, Calvin C. and Wright, Jesse B.",
  date-added    = "2017-08-17 16:54:32 +0000",
  date-modified = "2017-08-17 16:54:32 +0000",
  Journal       = "Journal of Symbolic Logic",
  Number        = "3",
  Pages         = "389--390",
  Publisher     = "Association for Symbolic Logic",
  Title         = "Realization of Events by Logical Nets",
  Volume        = "32",
  Year          = "1967",
  File          = "p181-copi (0) - a - a - c.pdf"
}

@Article{ Copi1967-COPROE, Author = "Copi, Irving M. and Elgot, Calvin C. and Wright, Jesse B.", date-added = "2017-08-17 16:54:32 +0000", date-modified = "2017-08-17 16:54:32 +0000", Journal = "Journal of Symbolic Logic", Number = "3", Pages = "389--390", Publisher = "Association for Symbolic Logic", Title = "Realization of Events by Logical Nets", Volume = "32", Year = "1967", File = "p181-copi (0) - a - a - c.pdf" }