Tykhonov, I. V. “The Constructional Conception of the Effectiveness of Navigational Service Rising for Navigation on Inland Water Routes”. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia0, no. 40 (January 25, 2010): 200-202. Accessed July 23, 2024. https://radap.kpi.ua/radiotechnique/article/view/644.