However, as regards the specific obligations, linked to signature of the collective agreement for the building sector which the trade unions seek to impose on undertakings established in other Member States by way of collective action, the obstacle which that action forms cannot be justified with regard to such an objective.
Niisugune eesmärk ei saa olla õigustuseks takistusele, mis seisneb põhikohtuasjas kõne all olevas kollektiivses tegutsemises,