International law — Relation to municipal law — Treaty establishing European Economic Community, 1957 — Articles 85 and 86 — Whether self — executing — The law of the Netherlands.

Treaties — Operation of — Effect in municipal law — Relation to existing municipal legislation — Treaty establishing European Common Market — Articles 85 and 86 — Whether self-executing — The law of the Netherlands.

Treaties — Interpretation of — Principles and rules of — Interpretation by reference to system of treaty — Interpretation by.reference to context — Treaty establishing European Economic Community — Articles 85 and 86.

Treaties — Special kinds of — Economic treaties — Treaty establishing European Economic Community, 1957 — Rules governing competition — Articles 85 and 88 of Treaty — Effect in municipal law — The law of the Netherlands.