1. Neubrand, A., Rödel, J.: Gradient materials: An overview of a novel concept. Zeit. Metall. 88(5), 358–371 (1997)
2. Erdoǧan, F.: Fracture mechanics of functionally graded materials. Compos. Eng. 5(7), 753–770 (1995)
3. Pindera, M.J., Aboudi, J., Glaeser, A.M, et al.: Use of Composites in Multi-phased and Gunctionally Graded Materials. Composites Part B-Eng 28(1/2), 1–175 (1997)
4. Timoshenko, S.P., Goodier, J.N.: Theory of Elasticity. (3rd edn). McGraw Hill Book Company, California (1970)
5. Chiba, R.: Stochastic heat conduction analysis of a functionally graded annular disc with spatially random heat transfer coefficients. Appl. Math. Model 33(1), 507–523 (2009)