Joined Cases C-393/04 and C-41/05 Air Liquide, paragraph 48; and Joined Cases C-266/04 to C-270/04, C-276/04 and C-321/04 to C-325/04 Casino France and Others, paragraphs 43 and 44.
Affaires jointes C-393/04 et C-41/05, Air Liquide, point 48; et affaires jointes C-266/04 à C-270/04, C-276/04 et C-321/04 à C-325/04, Casino France et autres, points 43 et 44.