JUDGMENT OF THE COURT (Sixth Chamber) of 30 September 1997 in Case C-36/96 (reference for a preliminary ruling from the Bundesverwaltungsgericht): Faik Günaydin, Hatice Günaydin, Günes Günaydin, Seda Günaydin v. Freistaat Bayern (EEC-Turkey Association Agreement - Decision of the Council of Association - Freedom of movement for workers - Meaning of 'duly registered as belonging to the labour force of a Member State' and 'legal employment' - Temporary and conditional work and residence permits - Application for extension of residence permit - Abuse of rights)