Professors Koppel O.A. and Parkhomchuk O.S. published a scientific article

Koppel O.A., Parkhomchuk O.S. "Borders in Europe and cross-border cooperation". Regional studios. Issue 37. P. 103-108.

The article, in particular, deals with the problems of cross-border cooperation in the backdrop of the growing nationalist-patriotic resentment in some EU countries.