Joined Cases C-7/05 to C-9/05: Judgement of the Court (Second Chamber) of 8 June 2006 (references for a preliminary ruling from the Bundesgerichtshof (Germany) — Saatgut-Treuhandverwaltungs GmbH v Ulrich Deppe, Hanne-Rose Deppe, Thomas Deppe, Matthias Deppe, Christine Urban (née Deppe) (C-7/05), Siegfried Hennings (C-8/05), Hartmut Lübbe (C-9/05), (Plant varieties — Level of equitable remuneration to be paid to the holder of a Community plant variety right — Article 5(2), (4) and (5) of Regulation (EC) No 1768/95, as amended by Regulation (EC) No 2605/98 — Concept of level of remuneration sensibly lower than the amount charged for the licensed production of propagating material )