1. Departamento de Doctorado, Hochschule Rhein Main, 18 Kurt-Schumacher-Ring, Wiesbaden, Alemania.
2. Zhytomyr Polytechnic State University, Str., Zhytomyr, Ukraine.
3. National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine.
4. Western Ukrainian National University, Ternopil, Ukraine.
5. Lviv Polytechnic National University, Lviv, Ukraine.