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@Book{            book:1327098,
  Author        = "Bird, Richard",
  date-added    = "2020-04-10 11:07:26 +0200",
  date-modified = "2020-04-10 11:07:26 +0200",
  Edition       = "2ed.",
  ISBN          = "0-13-484346-0,9780134843469",
  Publisher     = "Prentice Hall",
  Title         = "Introduction to functional programming using Haskell",
  URL           = "http://gen.lib.rus.ec/book/index.php?md5=40DA5ACFAADA965A8CE11031B389318A",
  Year          = "1998",
  bdsk-url-1    = "http://gen.lib.rus.ec/book/index.php?md5=40DA5ACFAADA965A8CE11031B389318A",
  File          = "Introduction to functional programming using Haskell - Bird (0) (0) - a - a.pdf",
  file-2        = "Introduction to functional programming using Haskell - Bird (0) (0) - a - a.djvu"
}

@Book{ book:1327098, Author = "Bird, Richard", date-added = "2020-04-10 11:07:26 +0200", date-modified = "2020-04-10 11:07:26 +0200", Edition = "2ed.", ISBN = "0-13-484346-0,9780134843469", Publisher = "Prentice Hall", Title = "Introduction to functional programming using Haskell", URL = "http://gen.lib.rus.ec/book/index.php?md5=40DA5ACFAADA965A8CE11031B389318A", Year = "1998", bdsk-url-1 = "http://gen.lib.rus.ec/book/index.php?md5=40DA5ACFAADA965A8CE11031B389318A", File = "Introduction to functional programming using Haskell - Bird (0) (0) - a - a.pdf", file-2 = "Introduction to functional programming using Haskell - Bird (0) (0) - a - a.djvu" }