JUDGMENT OF THE COURT (Sixth Chamber) of 26 November 1998 in Case C-1/97 (reference for a preliminary ruling from the Verwaltungsgericht der Freien Hansestadt Bremen): Mehmet Birden v. Stadtgemeinde Bremen (EEC-Turkey Association Agreement - Freedom of movement for workers - Article 6(1) of Decision No 1/80 of the Association Council - Scope - Turkish national with a fixed-term employment contract under a programme financed by the public authorities and designed to assist the integration of persons dependent on social assistance into the labour market)