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@Book{            book:1538201,
  Author        = "(ed.), Stephen G. Simpson",
  date-added    = "2021-04-30 19:57:18 +0200",
  date-modified = "2021-04-30 19:57:18 +0200",
  ISBN          = "1568812639,9781568812632",
  Publisher     = "ASL",
  Series        = "Lecture Notes in Logic 21",
  Title         = "Reverse Mathematics 2001",
  URL           = "http://gen.lib.rus.ec/book/index.php?md5=7c2c50a888c578bf4e49df8052bb6640",
  Year          = "2005",
  bdsk-url-1    = "http://gen.lib.rus.ec/book/index.php?md5=7c2c50a888c578bf4e49df8052bb6640",
  File          = "Reverse Mathematics 2001 by Stephen G. Simpson (ed.) (z-lib.org) - h.pdf"
}

@Book{ book:1538201, Author = "(ed.), Stephen G. Simpson", date-added = "2021-04-30 19:57:18 +0200", date-modified = "2021-04-30 19:57:18 +0200", ISBN = "1568812639,9781568812632", Publisher = "ASL", Series = "Lecture Notes in Logic 21", Title = "Reverse Mathematics 2001", URL = "http://gen.lib.rus.ec/book/index.php?md5=7c2c50a888c578bf4e49df8052bb6640", Year = "2005", bdsk-url-1 = "http://gen.lib.rus.ec/book/index.php?md5=7c2c50a888c578bf4e49df8052bb6640", File = "Reverse Mathematics 2001 by Stephen G. Simpson (ed.) (z-lib.org) - h.pdf" }