@Article{         Harela,
  Author        = "Harel, David",
  date-added    = "2012-06-04 21:56:21 +0200",
  date-modified = "2012-12-07 10:10:20 +0000",
  Journal       = "Science of Computer Programming",
  Keywords      = "statecharts and classic",
  Title         = "Statecharts: A Visual Formalism for Complex Systems",
  Year          = "1987",
  File          = "Statecharts A Visual Formalism for Complex Systems - Harel (0) (0) - a - a - j.pdf"
}

@Article{ Harela, Author = "Harel, David", date-added = "2012-06-04 21:56:21 +0200", date-modified = "2012-12-07 10:10:20 +0000", Journal = "Science of Computer Programming", Keywords = "statecharts and classic", Title = "Statecharts: A Visual Formalism for Complex Systems", Year = "1987", File = "Statecharts A Visual Formalism for Complex Systems - Harel (0) (0) - a - a - j.pdf" }