@Article{         PCFG,
  Author        = "Geman, S. and Johnson, M.",
  date-added    = "2017-04-04 13:26:45 +0000",
  date-modified = "2017-04-04 13:27:32 +0000",
  Title         = "Probabilistic Grammars and their Applications",
  File          = "Encyclopedia-grammars (0) - a - a - v.pdf"
}

@Article{ PCFG, Author = "Geman, S. and Johnson, M.", date-added = "2017-04-04 13:26:45 +0000", date-modified = "2017-04-04 13:27:32 +0000", Title = "Probabilistic Grammars and their Applications", File = "Encyclopedia-grammars (0) - a - a - v.pdf" }