International law — Relation to municipal law — Treaties — Operation of, as part of municipal law — European Economic Community (Common Market) Treaty of March 25, 1957 — Provisions of Treaty prohibiting restrictive trade practices — The law of Luxembourg.

Treaties — Operation and enforcement of — Applicability of treaty as part of municipal law — European Economic Community (Common Market) Treaty of March 25, 1957 — Provisions of Treaty prohibiting restrictive trade practices — The law of Luxembourg.

Treaties — Special kinds of — Treaty establishing European Economic Community, 1957 — Prohibition of abuse of market-dominating position (Article 86) — Whether directly applicable or requiring municipal legislation — Whether applicable to contracts between individuals in same Member State of Community — The law of Luxembourg.