See Case C-243/01 Gambelli [2003] ECR I-13031, paragraphs 63 to 65 and Joined Cases C-338/04, C-359/04 and C-360/04 Placanica and Others [2007] ECR I-1891, paragraphs 46 to 49.
Katso asia C-243/01, Gambelli, Kok. 2003, s. I-13031, 63–65 kohta, ja yhdistetyt asiat C-338/04, C-359/04 ja C-360/04, Placanica ym., Kok. 2007, s. I-1891, 46–49 kohta.