Simonovski, Petar, Nikola Avramov, Simeon Simeonov, Sasko Milev, and Zlatko Sovreski. “Impact of the Structural Forms of Diaphragm Spring Beginning on Dynamic Durability of Diaphragm Springs of Vehicle Clutches”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 36, no. 3 (October 9, 2017): 291–300. Accessed April 28, 2024. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/8169.