1. Norris, C.B., Ericksen, W.S. and Kommers, W.J. “Flexural rigidity of a rectangular strip of sandwich construction” Report No 1505-A (Forest Products Laboratory, US Dept of Agriculture)
2. Measurement of shear stiffness of sandwich beams;Allen;Trans J Plastics Inst,1967
3. Flexural stiffness of sandwich beams;Adams;J Engng Mater and Tech, Trans ASME, Series H,1975
4. Damping in sandwich beams with shear-flexible cores;Bert;J Engng for Industry, Trans ASME,1967
5. A finite element analysis of the harmonic response of damped three-layer plates;Iaonnides;J Sound & Vibration,1979