Варцаб’юк, Андрій Романович. “TRANSMISSION LOSSES IN INTEGRATED SILICON WAVEGUIDES AND METHODS OF THEIR EXPERIMENTAL DEFINITION”. PRECARPATHIAN BULLETIN OF THE SHEVCHENKO SCIENTIFIC SOCIETY. Number, no. 1(1), Mar. 2019, pp. 191-6, https://pvntsh.nung.edu.ua/index.php/number/article/view/351.