Жиляков, В., А. Зеленов, and А. Садовой. “Synthesis of the Optimal Block Diagram of the Relay Control of the Valve Positional Electric Drive.”. Electrotechnic and Computer Systems, no. 25(25), Feb. 2019, pp. 28-34, https://eltecs.op.edu.ua/index.php/journal/article/view/987.