PIELORZ, A. Discrete-Continuous Models In Nonlinear Dynamic Investigations of Selected Physical Systems. Engineering Transactions, [S. l.], v. 47, n. 2, p. 155–171, 1999. DOI: 10.24423/engtrans.626.1999. Disponível em: https://et.ippt.gov.pl/index.php/et/article/view/626. Acesso em: 19 mar. 2026.