Defendant: European Commission (represented by: F. Castillo de la Torre, acting as Agent, assisted initially by J. Rivas Andrés, lawyer, and by M. Heenan Bróna, Solicitor, and subsequently by J. Rivas Andrés)
Partie défenderesse: Commission européenne (représentants: F. Castillo de la Torre, agent, assisté initialement de J. Rivas Andrés, avocat, et de M. Heenan Bróna, solicitor, puis de J. Rivas Andrés)