@Article{         Fagin:ESO:NP:1974,
  Author        = "Fagin, Ronald",
  date-added    = "2020-01-20 19:54:19 +0100",
  date-modified = "2020-01-20 19:55:44 +0100",
  Journal       = "Complexity of Computation",
  Keywords      = "classic",
  Pages         = "43--73",
  Title         = "Generalized first-order spectra and polynomial-time recognizable sets",
  Volume        = "7",
  Year          = "1974",
  File          = "Generalized first-order spectra and polynomial-time recognizable sets - genspec - a - a - a - q.pdf"
}

@Article{ Fagin:ESO:NP:1974, Author = "Fagin, Ronald", date-added = "2020-01-20 19:54:19 +0100", date-modified = "2020-01-20 19:55:44 +0100", Journal = "Complexity of Computation", Keywords = "classic", Pages = "43--73", Title = "Generalized first-order spectra and polynomial-time recognizable sets", Volume = "7", Year = "1974", File = "Generalized first-order spectra and polynomial-time recognizable sets - genspec - a - a - a - q.pdf" }