1. H.S. Carslaw, J.C. Jaeger: Conduction of Heat in Solids (Oxford Univ. Press, London 1948 ) p. 191
2. S.T. Hsu: Engineering Heat Transfer ( Van Nostrand, Princeton, NJ 1963 ) p. 274
3. W. Koechner: Appl. Opt. 9, 1429 (1970)
4. W. Koechner: J. Appl. Phys. 44, 3162 (1973)
5. S. Timoshenko, J.N. Goodier: Theory of Elasticity, 3rd edn. ( McGraw-Hill, Singapore 1982 )