A Comparison of Closed-Form and Finite-Element Solutions for the Free Vibration of Hybrid Cross-Ply Laminated Plates journalArticle Benhenni, M.A. Adim, B. Daouadji, T.H. Abbès, B. Abbès, F. Li, Y. Bouzidane, A. 2019 DOI 10.1007/s11029-019-09803-2