LIPKOVÁ, Ľudmila. Some Issues of Withdrawal of the United Kingdom of Great Britain and Northern Ireland from the European Union. - Registrovaný: Web of Science. In International Conference on European Integration 2018. International Conference. International Conference on European Integration 2018 : Proceedings of the 4th International Conference on European Integration 2018 : May 17 – 18, 2018 Ostrava, Czech Republic. - Ostrava : VŠB - Technical University of Ostrava, 2018. ISBN 978-80-248-4169-4. ISSN 2571-029X, p. 935-939 online.