Протасов, А.Г., and Г.С. Юрченко. “Research Impedance Control Method As Cellular Structures”. Proceedings of National Aviation University 30, no. 4 (April 1, 2006): 114–118. Accessed March 9, 2025. https://jrnl.nau.edu.ua/index.php/visnik/article/view/1414.