Kotsubynskiy, Volodymyr, і Roman Holovaha. «IMPROVEMENT OF THE MESSAGES TRANSMISSION PROCESS, USING FIX/FAX PROTOCOL IN FINANCIAL CLIENT-SERVER SYSTEMS». Scientific Works of Vinnytsia National Technical University, no. 2 (Листопад 30, 2015). дата звернення Травень 15, 2026. https://works.vntu.edu.ua/index.php/works/article/view/275.