@Article{         Lambek,
  Author        = "Lambek, Joachim",
  date-added    = "2013-04-01 17:34:39 +0000",
  date-modified = "2013-04-01 17:36:36 +0000",
  Journal       = "American Mathematical Monthly",
  Keywords      = "formal linguistics and syntactic calculus and classic",
  Pages         = "154--170",
  Title         = "The mathematics of sentence structure",
  Year          = "1958",
  File          = "The mathematics of sentence structure - Lambek (0) (0) - a - a - g.pdf"
}

@Article{ Lambek, Author = "Lambek, Joachim", date-added = "2013-04-01 17:34:39 +0000", date-modified = "2013-04-01 17:36:36 +0000", Journal = "American Mathematical Monthly", Keywords = "formal linguistics and syntactic calculus and classic", Pages = "154--170", Title = "The mathematics of sentence structure", Year = "1958", File = "The mathematics of sentence structure - Lambek (0) (0) - a - a - g.pdf" }