Judgment of the Court (Second Chamber) of 16 December 2004 in Case C-293/03 (reference for a preliminary ruling from the Tribunal du travail de Bruxelles): Gregorio My v Office national des pensions (ONP) (Community officials — Transfer of pension rights — Article 11 of Annex VIII to the Staff Regulations — Early retirement pension — Reckoning of periods of employment with the European Community — Article 10 EC)