Сидоров, Я. Г., and Г. И. Сидоров. “Optimization of Antennas Elevation Angles for Atmospheric Boundary Layer Acoustic Sounding System”. Eastern-European Journal of Enterprise Technologies, vol. 5, no. 9(71), Oct. 2014, pp. 13-19, doi:10.15587/1729-4061.2014.27900.