1. H.S. Carslaw and J.C. Jaeger.Conduction of Heat in Solids, 2nd ed., Oxford University Press, London, 1978, p. 270.
2. J. C. Jaeger:J. Proc. Roy. Soc. N. S. W., 1943, vol. 76, p. 203.
3. Y. Arata, H. Maruo, and I. Mizamota: International Institute of Welding Document IV-241-78/212-436-78, 1978.
4. D.S. Gnanamuthu, C.B. Shaw, Jr., W. F. Lawrence, and MR. Mitchell: inLaser Solid Interactions and Laser Processing -1978, S. D. Ferris,et al, eds., American Institute of Physics, 1979, p. 173.
5. L.E. Greenwald, Z.M. Breinan, and B.H. Kear:ibid., p. 189.