Relationship of international law and municipal law — Treaties — Effect in municipal law — EEC Treaty, 1957 — Basic norms — Relationship to fundamental rights under national constitutions — Incorporation of basic norms into Spanish constitutional order — Spanish Constitution, Article 10(2)

Treaties — Effect in municipal law — EEC Treaty, 1957 — Incorporation into municipal legal order — Article 7 — Ban on discrimination on grounds of nationality

Human rights — Procedure for enforcement — Fundamental rights under Spanish Constitution — Interpretation by reference to international treaties — Article 10(2) of Constitution — Principle of non-discrimination — EEC Treaty, Article 7 — Article 14 of Constitution

Human rights — Procedure for enforcement — EEC — Right to non-discrimination — Scope of protection within municipal legal order of Member States — Proceedings for enforcement before national Constitutional Court

International organizations — EEC — Institutions — Court of Justice of European Communities — Effect of decisions in municipal legal order of Member States

Economics, trade and finance — EEC Treaty, Article 7 — Ban on discrimination on grounds of nationality — Scope of prohibition — Application of jurisprudence of Court of Justice of European Communities — The law of Spain