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@Book{            book:122372,
  Author        = "Boyer",
  date-added    = "2021-03-21 09:52:39 +0100",
  date-modified = "2021-03-21 09:52:39 +0100",
  Edition       = "2e",
  Publisher     = "Wiley",
  Title         = "History of Mathematics",
  URL           = "http://gen.lib.rus.ec/book/index.php?md5=1f00d3cc397a5ade3745bf5061a1fa41",
  Year          = "1991",
  bdsk-url-1    = "http://gen.lib.rus.ec/book/index.php?md5=1f00d3cc397a5ade3745bf5061a1fa41"
}

@Book{ book:122372, Author = "Boyer", date-added = "2021-03-21 09:52:39 +0100", date-modified = "2021-03-21 09:52:39 +0100", Edition = "2e", Publisher = "Wiley", Title = "History of Mathematics", URL = "http://gen.lib.rus.ec/book/index.php?md5=1f00d3cc397a5ade3745bf5061a1fa41", Year = "1991", bdsk-url-1 = "http://gen.lib.rus.ec/book/index.php?md5=1f00d3cc397a5ade3745bf5061a1fa41" }