See the blogue entries:
the discussions of this group:
And a chronological comparative study that Maria Alexendru presented together with her students:
Alexandru, Maria. “«Χρυσέοις έπεστι», ένα στιχηρό του Αγίου Ιωάννου του Χρυσοστόμου στη διαχρονική του εξέλιξη: Παλαιογραφικές και αναλυτικές αναζητήσεις.” In Proceedings of the 1st International Conference of the ASBMH, 337–485, PDF, video of the presentation.
For a list of manuscripts and printed editions have a look here.
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