»Avoidance of Multiple Liability of the Cartelist. The Third Party Notice Solution of the Federal Court of Justice«: For a cartelist, there is the risk of having to compensate both his direct and indirect customers for price overcharge damages. The paper examines the third party notice cited by the Federal Court of Justice (Bundesgerichtshof) in the >ORWI< decision to prevent such multiple liability. The paper investigates the background of the law applicable before the 9th GWB amendment came into force and the changes in the legal situation caused by the 9th GWB amendment.