OBS_VALUE: <ul><li><a href=https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A02008R1008-20201218 target=_blank>Regulation 1008/2008 on the operation of air services(Regulation (EC) No 1008/2008 on common rules for the operation of air services in the Community, OJ L 293, p. 3, adopted on 24 September 2008, Article 13(4))</a></li></ul>