Glazunov , I. E., N. V. Bilak, V.G. Vovk, and O. V. Litvinova. 2021. “SYNTHESIS OF THE OPTIMAL OBSERVING FILTER B NAVIGATION SYSTEM”. Problems of Informatization and Management 2 (11):105-8. https://jrnl.kai.edu.ua/index.php/PIU/article/view/16029.