[1] J. M. Whitney, N. J. Pagano, “Shear deformation in heterogeneous anisotropicplates ”, j.appl.mech,1970, pp.1031-1036.
                                                                                                                [2] N. J. Pagano, “Exact solutions for rectangular bidirectional composites and sandwichplates”, journal of composites materials, vol.4, 1970, pp.20-34.
                                                                                                                [3] Y. M. Forstig, O. Baruch, I. Shteinman, “Higher-order theory for sandwich beams behavior with transversely flexible core”,journal of engineeringmechanics, vol.118,1992, pp.1026-1043.
                                                                                                                [4] Y. M.Frostig, “Buckling of sandwich panels with a flexible core higher order theory”, International Journal of Solids and Structures, vol.35, 1998, pp. 183–204.
                                                                                                                [5] E. Bozhevolnaya, Y. M. Frostig, “Free Vibrations of Curved Sandwich Beams with a Transversely FlexibleCore”,journal of Sandwich Structures and materials, vol. 3, 2001, pp. 311-342.
                                                                                                                [6] Y. M. Frostig, O. T. Thomsen, high-order free vibrations of sandwich panels with a Flexible core". Journal of solid and structure, vol.41,2004, pp.1697-1724.
                                                                                                                [7] S. Abrate, “Impact on Laminated Composite Materials”, Journal of Applied Mechanic Rev., Vol. 44,1991, pp.155-190.
                                                                                                                [8] S. Abrate, “Impact on Laminated Composites: recent advances”, Journal of Applied Mechanic Rev, Vol.47,1994, pp.517-544.
                                                                                                                [9] R. Olsson, “Impact Response of Orthotropic Composite Plates Predicted from a Oneparameter Differential Equation”, Journal of AIAA, Vol. 30,1992, pp. 1587-1596.
                                                                                                                [10] K.N. Shivakumar, W. Elber, W. Illg, “Prediction of Impact Force and Durationdue to Low-Velocity Impact on Circular Composite Laminates”, Journal ofApplied Mechanics, Vol.52,1985, pp. 674-680.
                                                                                                                [11] P. christoforou, H. Lotfi,“An inverse solution for low-velocity impact in composite plate”, composite and structure,  Vol. 79,2001, pp. 2607-2619.
                                                                                                                [12] S. R. Swanson, N. L. Smith, Y. Qian, “Analytical and experimental strain response in impact of composite cylinders”, Composite structures,Vol. 18, 1991, pp. 95-108.
                                                                                                                [13] M. R. Khalili, “Analysis of the Dynamic Response of Large Orthotropic Elastic Plates to Transverse Impact and its Application to Fiber Reinforced Plates”, ]PhDThesis[, Indian Institute of Technology, Delhi, 1992.
                                                                                                                [14] L.J. Lee, K. Y. Huang,Y. J. Fann, “Dynamic Response of Composite Sandwich Plate Impact by a Rigid Ball”, Journal of Composite Materials, Vol.27,1993, pp. 1238-1256.
                                                                                                                [15] Y.Mijia, Q. Pizhong, “Higher-order impact modeling of sandwich structures with flexible core”, International Journal of Solids and Structures, Vol. 42,2005, pp. 5460–5490.
                                                                                                                [16] F. AshenaiGhasemi, K. MalekzadehFard, R. Paknejad, “Response of cantilever fiber metal laminate (FML) plates using an analytical-numerical method”, Modares Mechanical Engineering, Vol. 13, No. 3, 2013, pp. 57-67 (In Persian).
                                                                                                                [17] S. W. Gong, “A study of impact on composite laminated shells”, ]PhD Dissertation[, National University of Singapore, 1995.
                                                                                                                [18] D. W. Zhou,W. J. Stronge, “Low velocity impact denting of HSSA lightweight sandwich panel”, International Journal of Mechanical Sciences, Vol. 48, 2006, pp. 1031-1045.
                                                                                                                [19] I. Ivanez, E. Brabero, S. Sanchez-saez, Analytical syudy of the low-velocity impact response of composite sandwich beam.composite structures, vol 111, 2014, pp. 459-467.
                                                                                                                [20] I. Ivanez, S. Sanchez-saez, Numerical modeling of the low-velocity impact response of composite sandwich beam with honeycomb core.composite structures, vol 106, 2013, pp. 716-723.
                                                                                                                [21] G. H. Payeganeh, F. AshenaiGhasemi, K. MalekzadehFard, Dynamic response of fiber-metal laminate(fmls) subjected to low-velocity impact.Thin-walled structures, vol47, 2010, pp. 62-70.
                                                                                                                [22] S. R. Swanson, “Limits of quasi-static solutions in impact ofcomposite structures”, Comp Engng, Vol. 2 ,1992,  pp.261-7.
                                                                                                                [23] I. H. Choi, C. H. Lim, Low-velocity impact analysis of composite laminates using linearized contact law. Composite Structures 66, 2004, pp.125–132.
                                                                                                                [24] A. E. Armenakas, D. C. Gazis, G.Herrmann, 1969.Free vibrations of circular cylindrical shells.Oxford: Pergamon Press.