@url{             Wadler:Realworld,
  Author        = "Wadler, Philip",
  date-added    = "2013-12-13 09:31:58 +0000",
  date-modified = "2013-12-13 09:33:23 +0000",
  Title         = "http://homepages.inf.ed.ac.uk/wadler/realworld/"
}

@url{ Wadler:Realworld, Author = "Wadler, Philip", date-added = "2013-12-13 09:31:58 +0000", date-modified = "2013-12-13 09:33:23 +0000", Title = "http://homepages.inf.ed.ac.uk/wadler/realworld/" }