Judgment of the Court (Sixth Chamber) of 12 February 2004 in Case C-230/02 (Reference for a preliminary ruling from the Bundesvergabeamt): Grossmann Air Service, Bedarfsluftfahrtunternehmen GmbH & Co. KG v Republik Österreich (Public procurement — Directive 89/665/EEC — Review procedures for the award of public contracts — Articles 1(3) and 2(1)(b) — Persons to whom review procedures must be available — Definition of "interest in obtaining a public contract")