Challenges and possibilities of enforcing the rule of Law within the EU constitutional edifice - the need for increased role of court of justice, EU charter and diagonality in perceptionHamulak, Ondrej; Circolo, AndreaThe EU in the 21st century : challenges and opportunities for the European integration process2020 / p. 155-169 https://doi.org/10.1007/978-3-030-38399-2_10 Constitutionalism beyond the state : View from the Czech PerspectiveHamulak, Ondrej2016 https://doi.org/10.1007/978-3-319-45351-4_2