Judgment of the Court (Second Chamber) of 24 November 2005 in Case C-331/04 Reference for a preliminary ruling from the Consiglio di Stato: ATI EAC Srl e Viaggi di Maio Snc and Others v ACTV Venezia SpA and Others (Public service contracts — Directives 92/50/EEC and 93/38/EEC — Award criteria — The economically most advantageous tender — Observance of award criteria set out in the contract documents or the contract notice — Establishment of subheadings for one of the award criteria in the contract documents or the contract notice — Decision to apply weighting — Principles of equal treatment of tenderers and transparency)