1. Prahovnik, A.V., Zakladny, О.М. and Zakladny, O.O. (2011), "Functional diagnostics of energy efficiency of electromechanical systems with asynchronous motors," Elektrotekhnichni ta kompyuterni systemy, Vol. 3, pp. 375-376, available at: http://nbuv.gov.ua/ UJRN/etks_2011_3_129.
2. Pellegrino, J.L., Margolis, N., Justiniano, M., Miller, M. and Thedki, A. (2004), Energy Use, Loss and Opportunities Analysis, U.S. Manufacturing and Mining, Prepared by Energetics, Incorporated and E3M, Incorporated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Industrial Technologies Program, available at: https://www.energy.gov/sites/prod/files/2013/11/f4/energy_use_loss_opportunities_analysis.pdf
3. Online fault-monitoring in machine tools based on energy consumption analysis and non-invasive data acquisition for improved resource-efficiency;Emec;13th Global Conference on Sustainable Manufacturing Procedia CIRP,2016
4. Schneider Electric. EcoStruxure Power Monitoring Expert, available at: https://www.se.com/en/en/product-range-presentation/61280-ecostruxure%E2%84%A2-power-monitoring- expert-8.
5. Woolard, J., Fong, D., Dell'Era, P. and Gipson, K. (1998), Patent 6,178,362 B1, "Energy Management System and Method", U.S., available at: https://patents.google.com/ patent/US6178362B1/en.