%0 Journal Article %A E. A. Lachugina %T Free vibrations of a five-layer circular plate at different fixations of the contour %J Problemy fiziki, matematiki i tehniki %D 2025 %P 25-30 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/PFMT_2025_1_a3/ %G ru %F PFMT_2025_1_a3