Judgment of the Court (Second Chamber) of 11 November 2004 in Case C-425/02 (reference for a preliminary ruling from the Cour administrative): Johanna Maria Boor, née Delahaye v Ministre de la Fonction publique et de la Réforme administrative (Safeguarding of employees' rights in the event of a transfer of an undertaking to the State — Possibility for the State to impose rules of public law — Reduction of the amount of remuneration)