Абдулов, Р. Н., and Х. Г. Асадов. “Issues of Improving the Noise Immunity of GPS/INS Aircraft Navigation Systems”. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, no. 77, Feb. 2019, pp. 42-46, doi:10.20535/RADAP.2019.77.42-46.