In the doctoral dissertation titled “Ethnonyms in the Serbian Language and Serbistics: meaning, formation and lexical processing”, by Milan D. Ivanovic, published in the University of Belgrade, we can read an interesting passage:

“Since the only ethnonym Arbanasi is attested in all the more significant monuments of the Middle Ages – from the Founding Charter of the Hilandar Monastery (1198), through, for example, the Vranjina charters attributed to King Vladislav, Queen Jelena and King Milutin, to the much more famous ones: the Decan and Svetoarhanyoel charters (Blagojević 2007: 14–20) – it was natural that our historiography and our philology would advocate for it, either implicitly, through use, or explicitly, with appropriate argumentation, especially since it was not common.”

Other references

Komatina 2016: p. 261–262.

Bubalo 2006.