Please have a look at the hompage of the « Institut du Moyen-Âge Grec et Latin »:
If you click on "Access CIMAGL," you will have open access to all editions until 2015 (including Raasted's edition of the Hagiopolites, vol. 45, and Maria Alexandru's critical edition of Ioannes Koukouzeles' "Mega Ison," published in vol. 66)
