Case C-17/13: Judgment of the Court (Third Chamber) of 27 March 2014 (request for a preliminary ruling from the Consiglio di Stato — Italy) — Alpina River Cruises GmbH, Nicko Tours GmbH v Ministero delle infrastrutture e dei trasporti — Capitaneria di Porto di Chioggia (Maritime transport — Regulation (EEC) No 3577/92 — Concept of ‘maritime cabotage’  — Cruise services — Cruise crossing the Venetian lagoon, Italian territorial sea and the river Po — Departure from and arrival at the same port)