Impact of non-discrimination principle on Portuguese income tax law - EC Tax Review View Impact of non-discrimination principle on Portuguese income tax law by Ana Paula Dourado - EC Tax Review Impact of non-discrimination principle on Portuguese income tax law Ana Paula Dourado 1997-03-01 6 1 https://kluwerlawonline.com/api/Product/CitationPDFURL?file=Journals\ECTA\ECTA1997003.pdf EC Tax Review