handling urls that are not oj notes?

[chaee]

okay to skip like now?
https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=uriserv%3AOJ.C_.2021.517.01.0056.01.ENG&toc=OJ%3AC%3A2021%3A517%3ATOC#ntr2-C_2021517EN.01005601-E0002

eg.
(1) Artificial intelligence, blockchain and the future of Europe.
(2) OJ C 240, 16.7.2019, p. 51.
(3) EESC opinion on the Regulation on artificial intelligence (see page 61 of this Official Journal).
(4) Norms over force. The enigma of European power, Zaki Laïdi, 2005.
(5) Regulation on data governance.
(6) OJ C 364, 28.10.2020, p. 87.
(7) OJ C 14, 15.1.2020, p. 46.