Filimonikhin, G., V. Yatsun, and K. Dumenko. “Research into Excitation of Dual Frequency Vibrational-Rotational Vibrations of Screen Duct by Ball-Type Auto-Balancer”. Eastern-European Journal of Enterprise Technologies, vol. 3, no. 7(81), June 2016, pp. 47-52, doi:10.15587/1729-4061.2016.72052.