The rule on jurisdiction laid down in Article 5(3 ) of the Convention of 27 September 1968 on jurisdiction and the enforcement of judgments in civil and commercial matters cannot be interpreted as permitting a plaintiff pleading damage which he claims to be the consequence of the harm suffered by other persons who were direct victims of the harmful act to bring proceedings against the perpetrator of that act in the courts of the place in which he himself ascertained the damage to his assets.