@Article{         fo,
  Author        = "of Philosophy, Stanford Encyclopedia",
  date-added    = "2020-01-21 09:20:39 +0100",
  date-modified = "2020-01-21 09:21:32 +0100",
  Journal       = "Stanford Encyclopedia of Philosophy",
  Title         = "The Emergence of First-Order Logic",
  Year          = "2018",
  File          = "The Emergence of First-Order Logic (Stanford Encyclopedia of Philosophy) - a - a - i.pdf"
}

@Article{ fo, Author = "of Philosophy, Stanford Encyclopedia", date-added = "2020-01-21 09:20:39 +0100", date-modified = "2020-01-21 09:21:32 +0100", Journal = "Stanford Encyclopedia of Philosophy", Title = "The Emergence of First-Order Logic", Year = "2018", File = "The Emergence of First-Order Logic (Stanford Encyclopedia of Philosophy) - a - a - i.pdf" }