1. Institute of Thermoelectricity of the National Academy of Sciences of Ukraine and the Ministry of Education and Science of Ukraine, Chernivtsi, Ukraine
2. Department of Thermoelectricity, Yuriy Fedkovych Chernivtsi National University, Chernivtsi, Ukraine
3. State Institution “The Filatov Institute of Eye Diseases and Tissue Therapy of the National Academy of Medical Sciences of Ukraine”, Odesa, Ukraine