Шишкін, О. В. “Forming and Detection of Digital Watermarks in the System for Automatic Identification of VHF Transmissions”. Proceedings of National Aviation University (archive) 55, no. 2 (May 11, 2013): 57–61. Accessed June 13, 2026. http://jrnl.kai.edu.ua/index.php/visnik/article/view/5415.