PFEIFFER, S. VAT grouping – EU law and Austrian implementation. Studi Tributari Europei, [S. l.], v. 10, n. 1, p. I –, 2020. DOI: 10.6092/issn.2036-3583/12303. Disponível em: https://ste.unibo.it/article/view/12303. Acesso em: 30 nov. 2021.