Voznyak, O. et al. 2025. Development and research of W-parameters of potentially unstable four-poles based on the mathematical model of W-parameters of field-effect transistors in the high-frequency range. Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska. 15, 3 (Sep. 2025), 87–90. DOI:https://doi.org/10.35784/iapgos.7071.