Effet Utile Versus Legal Certainty: The Case-law of the Court of Justice on the Direct Effect of Directives - European Business Law Review View Effet Utile Versus Legal Certainty: The Case-law of the Court of Justice on the Direct Effect of Directives by - European Business Law Review Effet Utile Versus Legal Certainty: The Case-law of the Court of Justice on the Direct Effect of Directives 17 2 European Business Law Review