Foryś, A., and A.S. Foryś. “Internal and Combination Resonances in a Kinematically Excited System of Non-Prismatic Rods”. Engineering Transactions 43, no. 1-2 (July 1, 1995): 113–136. Accessed January 17, 2026. http://et.ippt.gov.pl/index.php/et/article/view/1488.