MAGNUCKI K, MAGNUCKA-BLANDZI E, WITTENBECK L. Three Models of a Sandwich Beam: Bending, Buckling, and Free Vibrations. Eng. Trans. [Internet]. 2022 Jun. 30 [cited 2026 Mar. 19];70(2):97-122. Available from: https://et.ippt.gov.pl/index.php/et/article/view/1416