Navickas, Z., A. Žvironienė, R. Rindzevičius, and P. Tervydis. “Performance Analysis of Telecommunication System With Feedforward Control Mechanism”. Elektronika ir Elektrotechnika 105, no. 9 (October 29, 2010): 3-8. Accessed December 6, 2021. https://eejournal.ktu.lt/index.php/elt/article/view/9156.