1. Buckling of laminated composite plates and shell panels;Leissa,1985
2. Mechanics of Composite Materials;Jones,1975
3. Vibration and buckling of square composite plates with variable fiber spacing;Martin,1988
4. Some exact plane elasticity solutions for nonhomogeneous, orthotropic sheets;Leissa;J. Elasticity,1990
5. Uber eine neue Methode zür Lösung gewisser variationsprobleme der mathematischen Physik;Ritz;Z. Reine Angew. Math.,1908