Analysis of information sources in references of the Wikipedia article "Ρα'ς αλ Γκουλ" in Greek language version.
Writer Denny O'Neil once stated that he and artist Neal Adams 'set out to consciously and deliberately to create a villain...so exotic and mysterious that neither we nor Batman were sure what to expect.' Who they came up with was arguably Batman's most cunning adversary: the global eco-terrorist named Ra's al Ghul.
