Sushchenko, Olga, and Irina Osipenko. “FAULT-TOLERANCE RESEARCH OF NAVIGATIONAL NONORTHOGONAL MEASURING INSTRUMENTS”. Proceedings of National Aviation University (archive) 29, no. 3 (March 1, 2006): 38–41. Accessed April 19, 2026. http://jrnl.kai.edu.ua/index.php/visnik/article/view/1356.