@Article{         Tarski:1969aa,
  Author        = "Tarski, Alfred",
  date-added    = "2017-08-21 15:02:49 +0000",
  date-modified = "2017-08-21 15:03:18 +0000",
  Journal       = "Scientific American",
  Number        = "6",
  Title         = "Truth and Proof",
  Volume        = "220",
  Year          = "1969",
  File          = "Tarski (0) - a - a - z.pdf"
}

@Article{ Tarski:1969aa, Author = "Tarski, Alfred", date-added = "2017-08-21 15:02:49 +0000", date-modified = "2017-08-21 15:03:18 +0000", Journal = "Scientific American", Number = "6", Title = "Truth and Proof", Volume = "220", Year = "1969", File = "Tarski (0) - a - a - z.pdf" }