J. Michalczyk and G. Cieplok, “The Method of Elimination of Vibrations and Forces Excited by Unbalanced Rotary Machines with Inaccesible Rotor”, Eng. Trans., vol. 42, no. 1-2, pp. 85–105, Jun. 1994, Accessed: Mar. 19, 2026. [Online]. Available: https://et.ippt.gov.pl/index.php/et/article/view/1528