K voprosu o vlijanii demografičeskoj situacii na stanovlenie i razvitie greko-varvarskich svjazej v različnych rajonach Severo-Zapadnogo Pričernomor'ja : On the question of influence of demographic situation on foundation and development of Greek-Barbarian connections in different regions of the North-West Black Sea coast. - Vachtina, Marina Jur'evna (1993)