Леонідов, Володимир Іванович. “Statistical Descriptions of the Echosignals of Acoustic Sounding in the Area of Megalopolis”. Eastern-European Journal of Enterprise Technologies 6, no. 4(60) (December 14, 2012): 46–50. Accessed July 3, 2024. https://journals.uran.ua/eejet/article/view/5683.