Рожкова, Л. Г., and С. П. Кулініч. “Hubs Wind Flow Vertically - Axis Wind Installations to Increase the Utilization of Wind Energy”. Eastern-European Journal of Enterprise Technologies, vol. 5, no. 8(59), Oct. 2012, pp. 20-23, doi:10.15587/1729-4061.2012.4601.