<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, Articles 5(3), 8(8))</a></li><li><a href=http://www.et.gr/idocs-nph/search/pdfViewerForm.html?args=5C7QrtC22wGVo0BSic6eqXdtvSoClrL81tBIyTaSQGR5MXD0LzQTLf7MGgcO23N88knBzLCmTXKaO6fpVZ6Lx3UnKl3nP8NxdnJ5r9cmWyJWelDvWS_18kAEhATUkJb0x1LIdQ163nV9K--td6SIuTZa1CXeX9lhXoME1AllJVZrCHaROvx2ABzELINadktX target=_blank>Ministerial Decision on the establishment of air transport services companies( Υ.Α. Δ1/Δ/30817/2180 της 9.8/9.9.91. `Εγκριση   κανονισμού εγκατάστασης αεροπορικών εταιρειών και   παροχής υπηρεσιών αεροπορικών μεταφορών.- (Β` 727), adopted in 1991, Article 11(1c))</a></li></ul>