17.
Judgement of the CJEU issued in the joined cases C-128/09 to C-131/09, C-134/09 and C-135/09, Boxus and others, and case C-182/10, and others / Région wallonne Case C-240/09, Lesoochranárske zoskupenie, ECLI: EU: C: 2011: 125, and Case C-197/18 Wasserleitungsverband Nördliches Burgenland.