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@ebook{           Warren,
  Author        = "Warren, Henry S.",
  date-added    = "2020-04-10 11:05:14 +0200",
  date-modified = "2020-04-10 11:05:14 +0200",
  Publisher     = "Addison-Wesley",
  Title         = "Hacker's Delight",
  Year          = "2002",
  File          = "Hacker's Delight - Warren (0) (0) (0) - a - a - a.pdf"
}

@ebook{ Warren, Author = "Warren, Henry S.", date-added = "2020-04-10 11:05:14 +0200", date-modified = "2020-04-10 11:05:14 +0200", Publisher = "Addison-Wesley", Title = "Hacker's Delight", Year = "2002", File = "Hacker's Delight - Warren (0) (0) (0) - a - a - a.pdf" }