Agtzidis, Vlasis (). „The Persecution of Pontic Greeks in the Soviet Union”. Journal of Refugee Studies. 4 (4): 372–381. doi:10.1093/jrs/4.4.372. ISSN0951-6328.
Agtzidis, Vlasis (). „The Persecution of Pontic Greeks in the Soviet Union”. Journal of Refugee Studies. 4 (4): 372–381. doi:10.1093/jrs/4.4.372. ISSN0951-6328.