KOTULECKI, J.; WITKOWSKI, M. Tetrahedral Space-Time Elements in the Analysis of Forced Vibrations of Plates. Engineering Transactions, [S. l.], v. 36, n. 1, p. 87–95, 1988. Disponível em: http://et.ippt.gov.pl/index.php/et/article/view/1702. Acesso em: 17 jan. 2026.