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@Book{            book:129043,
  Author        = "Weisstein, Eric W.",
  date-added    = "2020-04-10 11:07:26 +0200",
  date-modified = "2020-04-10 11:07:26 +0200",
  Edition       = "2",
  ISBN          = "9781584883470,1584883472",
  Publisher     = "Chapman \& Hall",
  Title         = "CRC Concise Encyclopedia of Mathematics",
  URL           = "http://gen.lib.rus.ec/book/index.php?md5=feb1f7ca22eb5fcff041808d215ea97c",
  Year          = "2002",
  bdsk-url-1    = "http://gen.lib.rus.ec/book/index.php?md5=feb1f7ca22eb5fcff041808d215ea97c",
  File          = "CRC Concise Encyclopedia of Mathematics, Second Edition - a - a - a.pdf"
}

@Book{ book:129043, Author = "Weisstein, Eric W.", date-added = "2020-04-10 11:07:26 +0200", date-modified = "2020-04-10 11:07:26 +0200", Edition = "2", ISBN = "9781584883470,1584883472", Publisher = "Chapman \& Hall", Title = "CRC Concise Encyclopedia of Mathematics", URL = "http://gen.lib.rus.ec/book/index.php?md5=feb1f7ca22eb5fcff041808d215ea97c", Year = "2002", bdsk-url-1 = "http://gen.lib.rus.ec/book/index.php?md5=feb1f7ca22eb5fcff041808d215ea97c", File = "CRC Concise Encyclopedia of Mathematics, Second Edition - a - a - a.pdf" }