06.02.19. Preparation of Main Designs for Heavy Maintenance (Road Rehabilitation-Upgrading) of the State Roads IА 1, IB 22 and IIА 147: Lot 1: IA 1, Brestovac (interchange) - Doljevac (interchange), L= 6.903 km, Lot 2: IB 22, Ušće - Raška (Kosovska Mitrov