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@Book{            Feynmand,
  Author        = "Feynman, Richard P.",
  date-added    = "2020-04-10 11:07:26 +0200",
  date-modified = "2020-04-10 11:07:27 +0200",
  Title         = "Surely You're Joking, Mr. Feynman! - Adventures of a Curious Character",
  File          = "Surely You're Joking, Mr. Feynman! - Adventures of a Curious Character - Feynman (0) (0) - a - a.pdf",
  file-2        = "Surely You'Re Joking, Mr Feynman - Feynman (0) (0) - a - a.pdf",
  file-3        = "Richard P. Feynman, Ralph Leighton-Surely You're Joking, Mr. Feynman! (Adventures of a Curious Character)-W. W. Norton \& Company (1997) (0) - a - a.epub"
}

@Book{ Feynmand, Author = "Feynman, Richard P.", date-added = "2020-04-10 11:07:26 +0200", date-modified = "2020-04-10 11:07:27 +0200", Title = "Surely You're Joking, Mr. Feynman! - Adventures of a Curious Character", File = "Surely You're Joking, Mr. Feynman! - Adventures of a Curious Character - Feynman (0) (0) - a - a.pdf", file-2 = "Surely You'Re Joking, Mr Feynman - Feynman (0) (0) - a - a.pdf", file-3 = "Richard P. Feynman, Ralph Leighton-Surely You're Joking, Mr. Feynman! (Adventures of a Curious Character)-W. W. Norton \& Company (1997) (0) - a - a.epub" }