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@Book{            book:2307333,
  Author        = "Lolli, Gabriele",
  date-added    = "2020-05-08 07:33:36 +0200",
  date-modified = "2020-05-08 07:33:36 +0200",
  ISBN          = "88-15-02958-3",
  Publisher     = "Il Mulino",
  Series        = "Strumenti",
  Title         = "Introduzione alla logica formale",
  URL           = "http://gen.lib.rus.ec/book/index.php?md5=751dfdec0758989adc2eaec7d68bdc48",
  Year          = "1991",
  bdsk-url-1    = "http://gen.lib.rus.ec/book/index.php?md5=751dfdec0758989adc2eaec7d68bdc48",
  File          = "Introduzione alla logica formale by Lolli, Gabriele (z-lib.org) - a.pdf"
}

@Book{ book:2307333, Author = "Lolli, Gabriele", date-added = "2020-05-08 07:33:36 +0200", date-modified = "2020-05-08 07:33:36 +0200", ISBN = "88-15-02958-3", Publisher = "Il Mulino", Series = "Strumenti", Title = "Introduzione alla logica formale", URL = "http://gen.lib.rus.ec/book/index.php?md5=751dfdec0758989adc2eaec7d68bdc48", Year = "1991", bdsk-url-1 = "http://gen.lib.rus.ec/book/index.php?md5=751dfdec0758989adc2eaec7d68bdc48", File = "Introduzione alla logica formale by Lolli, Gabriele (z-lib.org) - a.pdf" }