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@Book{            Beigel,
  Author        = "Beigel, Richard and Floyd, Robert W.",
  date-added    = "2020-04-10 11:07:26 +0200",
  date-modified = "2020-04-10 11:07:27 +0200",
  Keywords      = "computability theory and complexity theory",
  Publisher     = "Computer Science Press",
  Title         = "The Language of Machines - An Introduction to Computability and Formal Languages",
  Year          = "1994",
  File          = "The Language of Machines - An Introduction to Computability and Formal Languages - Beigel, Floyd (0) (0) - a - a.pdf",
  file-2        = "The Language of Machines - An Introduction to Computability and Formal Languages - Beigel, Floyd (1) (0) - a - a.pdf"
}

@Book{ Beigel, Author = "Beigel, Richard and Floyd, Robert W.", date-added = "2020-04-10 11:07:26 +0200", date-modified = "2020-04-10 11:07:27 +0200", Keywords = "computability theory and complexity theory", Publisher = "Computer Science Press", Title = "The Language of Machines - An Introduction to Computability and Formal Languages", Year = "1994", File = "The Language of Machines - An Introduction to Computability and Formal Languages - Beigel, Floyd (0) (0) - a - a.pdf", file-2 = "The Language of Machines - An Introduction to Computability and Formal Languages - Beigel, Floyd (1) (0) - a - a.pdf" }