++++ 1. Free movement of goods - Quantitative restrictions - Measure having equivalent effect - Reservation of part of a public contract to undertakings established in a given region of the national territory - Not permissible - Measure favouring only part of national production - No impact (EEC Treaty, Art. 30) 2. Free movement of goods - Quantitative restrictions - Measure having equivalent effect - Measure capable of being classified as aid within the meaning of Article 92 of the Treaty - Possibility not excluding the applicability of the prohibition of measures having equivalent effect (EEC Treaty, Arts 30 and 92)