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@Book{            Stanley:EC:CUP:2011,
  Author        = "Stanley, Richard",
  date-added    = "2020-04-10 11:07:26 +0200",
  date-modified = "2020-11-26 17:22:11 +0100",
  Edition       = "2ed",
  ISBN          = "9781107602625",
  Publisher     = "Cambridge University Press",
  Series        = "Cambridge Studies in Advanced Mathematics",
  Title         = "Enumerative combinatorics",
  Volume        = "1",
  Year          = "2011",
  File          = "Enumerative combinatorics - Stanley.pdf",
  file-2        = "Catalan Numbers - china - g.pdf"
}

@Book{ Stanley:EC:CUP:2011, Author = "Stanley, Richard", date-added = "2020-04-10 11:07:26 +0200", date-modified = "2020-11-26 17:22:11 +0100", Edition = "2ed", ISBN = "9781107602625", Publisher = "Cambridge University Press", Series = "Cambridge Studies in Advanced Mathematics", Title = "Enumerative combinatorics", Volume = "1", Year = "2011", File = "Enumerative combinatorics - Stanley.pdf", file-2 = "Catalan Numbers - china - g.pdf" }