Iliev, Georgi. “EXPERIMENTAL STUDY OF THE FREQUENCY RESPONSES OF ELECTROPNEUMATIC POSITIONING SYSTEM”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 3 (June 22, 2024): 90–94. Accessed November 22, 2024. https://journals.rta.lv/index.php/ETR/article/view/8116.