S. V. Dzliev, A. V. Savkin, B. M. Solomyak, E. D. Yakubovich, “Periodic regimes in a system of differential inclusions that describes a special class of electrical valve schemes”, Izv. Vyssh. Uchebn. Zaved. Mat., 1987, no. 9, 36–41; Soviet Math. (Iz. VUZ), 31:9 (1987), 42–49
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