Barreiro Carril MC. Problems Raised by DAC 6 concerning Taxpayer’s Rights and Fundamental Freedoms. Particular Reference to DAC 6 Implementation in the Spanish Legal Order. W: Kukulski Z, Sęk M, red. Challenges of Contemporary Tax Law: Jubilee Book Dedicated to Professor Włodzimierz Nykiel. Volume II. Wydawnictwo Uniwersytetu Łódzkiego; 2024:77-91. doi:10.18778/8331-399-3.08