Kozyreva O, Plokhov I, Guraviev YN, Savraev IE, Ilyin AV. The regions of parametric instability of brush-contact device electromagnetic circuit in unstable working conditions. ETR [Internet]. 2015 Jun. 16 [cited 2024 Nov. 23];1:84-8. Available from: https://journals.ru.lv/index.php/ETR/article/view/218