• 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
• A historical study of contemporary human rights : deviation or extinction?Kerikmäe, Tanel; Hamulak, Ondrej; Chochia, ArchilActa Baltica historiae et philosophiae scientiarum2016 / p. 98-115 https://doi.org/10.11590/abhps.2016.2.06 https://www.scopus.com/sourceid/21100813726 https://www.scopus.com/record/display.uri?eid=2-s2.0-85019843404&origin=inward&txGid=9b46721a8e5733ae567ccf4a6a5184ec
• In supporting role cast : The EU Charter of Fundamental RightsBaranik, Kamil; Hamulak, OndrejEuropean Studies : The Review of European Law, Economics and Politics2021 / p. 67-82 https://obchod.wolterskluwer.cz/cz/european-studies-the-review-of-european-law-economics-and-politics.p5576.html https://obchod.wolterskluwer.cz/cz/european-studies-8-2021.dm-21368.pdf
• Indirect effect of EU law under constitutional scrutiny - the overview of approach of Czech constitutional courtHamulak, Ondrej; Kerikmäe, TanelInternational and comparative law review2016 / p. 69-82 http://dx.doi.org/10.1515/iclr-2016-0005
• Penetration of the charter of fundamental rights of the European Union into the Constitutional Order of the Czech Republic - basic scenariosHamulak, OndrejEuropean Studies : The Review of European Law, Economics and Politics2020 / p. 108-124 https://www.ceeol.com/search/article-detail?id=932776 https://obchod.wolterskluwer.cz/cz/european-studies-7-2020.dm-21360.pdf
• The Variations of judicial enforcement of EU Charter of fundamental rightsvis-á-vis union institutions and bodiesHamulak, OndrejEuropean studies : the review of European law, economics and politics2018 / p. 98–112 http://caes.upol.cz/wp-content/uploads/2019/08/FULL-VOLUME-European-Studies-2018-final.pdf