EG Usmanov , RCh Karimov , MU Idrisxodjaeva, MB Zubaydullaev. Phase relations in circuits with autoparametric oscillations. IJAST [Internet]. 2020Jun.5 [cited 2024May8];29(11s):1597 -1603. Available from: http://sersc.org/journals/index.php/IJAST/article/view/21198