Bulgaria) Mezhdunarodna konferent︠s︡ii︠a︡ "Problemi i podkhodi v izsledvaneto na Stanislavovii︠a︡ cheti-mineĭ" (2013 Sofia

Books by Bulgaria) Mezhdunarodna konferent︠s︡ii︠a︡ "Problemi i podkhodi v izsledvaneto na Stanislavovii︠a︡ cheti-mineĭ" (2013 Sofia on BookTides.