Suvorova, I., Kravchenko, O., Veligotskiy, D. and Goman, V. (2019) “Theoretical Foundations of Optimising Processes in Energy Conversion Systems to Increase the Effectiveness and Ecological Safety of Their Functioning”, European Journal of Sustainable Development, 8(5), p. 171. doi: 10.14207/ejsd.2019.v8n5p171.