JUDGMENT OF THE COURT of 30 April 1996 in Case C-214/94 (reference for a preliminary ruling from the Bundesarbeitsgericht): Ingrid Boukhalfa v. Bundesrepublik Deutschland (National of a Member State established in a non-member country - Employed on the local staff of the embassy of another Member State in that non-member country - Treated differently from local staff having the nationality of the Member State whose embassy is involved - Applicability of Community law - Prohibition of discrimination based on nationality)