Innan jag utifrån sakomständigheterna i målet vid den nationella domstolen närmare utreder under vilka omständigheter skattebestämmelser ska anses vara selektiva vill jag påminna om grunddragen i Azorerna-domen. ###>Before I examine more closely, in the light of the facts in the main proceedings, the circumstances under which tax rules may be regarded as selective, I would like to recall the main features of the Azores judgment.