Запорожець, О.І., В.А. Глива, В.І. Клапченко, Г.Д. Потапенко, and А.В. Лук’янчиков. 2007. “Methods and Means of Monitoring the Physical Condition of Metal Structures”. Proceedings of National Aviation University 32 (2):76-79. https://doi.org/10.18372/2306-1472.32.1480.