Koukoudis, Asterios (2003). The Vlachs: Metropolis and Diaspora. Zitros Publications. p. 304. ISBN9789607760869. "In the early 1950s, in an effort to repopulate the border areas, the state helped those wandering Arvanitovlachs to settle down in villages around the Prespa lakes; which is why we find Arvanitovlachs today in... Ieropiyi (Kostenetsi)... in Kastoria prefecture. In some of those villages, such as Ieropiyi... they are the only inhabitants."
didaktorika.gr
Pelagidis, Efstathios (1992). Η αποκατάσταση των προσφύγων στη Δυτική Μακεδονία (1923–1930) [The rehabilitation of refugees in Western Macedonia: 1923–1930] (Ph.D.) (in Greek). Aristotle University of Thessaloniki. p. 77. Retrieved 30 March 2022.
Alvanos, Raymondos (2005). Κοινωνικές συγκρούσεις και πολιτικές συμπεριφορές στην περιοχή της Καστοριάς (1922–1949) [Social conflicts and political behaviors in the area of Kastoria (1922–1949)] (Ph.D.) (in Greek). Aristotle University of Thessaloniki. p. 516. Retrieved 16 June 2024. "Ιεροπηγή, Πληθυσμός: 458, Σλαυόφωνοι: 400, Συνείδησις Βουλγαρική: ναι"
