FRISCHHUT, Markus. The ethical spirit of EU law. Cham : Springer nature Switzerland, 2019. [The Ethical Spirit of EU Law]. 1 online zdroj (xix, 157 stran). Available on Internet: <https://link.springer.com/book/10.1007/978-3-030-10582-2> ISBN 978-3-030-10582-2.