Disputes — International courts — Court of European Coal and Steel Community — Procedure — Withdrawal of plaintiff during proceedings — Whether consent of defendant required — Appeal for annulment — Costs of party withdrawing.

Disputes — International courts — Court of European Coal and Steel Community — Parties — Joinder of actions — Action by producers of iron and steel appealing against a general decision — Decision affecting each party differently — Whether common basis for joint action.

International organization — European Goal and Steel Community — Interpretation of Treaty establishing — Articles setting out fundamental aims of Treaty to be read as a whole — Power of international organization to give predominance to certain of these aims — Interpretation of fundamental aims in light of subsequent provision of Treaty — Effect of failure to comply with fundamental aims — Whether a détournement de pouvoir — Article 65 — Whether acts of High Authority more restrictive than necessary for their purpose — Application of Article 65 to financial arrangements — Whether general decision can be challenged on ground of violation of Treaty.