TY - CHAP TI - Con­sti­tu­tional Found­a­tions: EU Tax Com­pet­ences; Treaty Basis for Tax In­teg­ra­tion; Sources and En­act­ment of EU Tax Law AF - European Tax Law, 7th Student edition PP - Deventer PB - Wolters Kluwer Law & Business SP - 9 EP - 22 PY - 2018-01-01 AU - Szudoczky, Rita AU - Weber , Dennis ER -