Nguyen, V. T., A. T. Nguyen, and Q. T. Vu. “Study the Variation of the Pitching Frequency of Sounding Rockets”. Journal of Military Science and Technology, vol. 98, no. 98, Oct. 2024, pp. 146-54, doi:10.54939/1859-1043.j.mst.98.2024.146-154.