Contact

Editorial board address: Sumy State University, 116, Kharkivska st., 40007 Sumy, Ukraine
Editorial board E-mail: tractatus@journ.sumdu.edu.ua
Phone: + 380 542 665 133

Editor-in-chief: Iryna Rudolfivna Zhilenko
E-mail: i.zhylenko@journ.sumdu.edu.ua
Phone: +380 50 132 7537

Responsible secretary: Olena Evgenivna Bondarenko
E-mail: ol.bondarenko@journ.sumdu.edu.ua
Phone: +380 50 505 1804

Technical secretary: Olena Anatoliivna Ishchenko
E-mail: o.ishchenko@journ.sumdu.edu.ua
Phone: +380 50 160 0856