1. Steen, W.M. and Kamalu, J.N. (1983) M. Bass (ed) Laser Materials Processing, North-Holland Publishing Co., Amsterdam, p. 83.
2. Mori, M. and Kumehara, H. (1976) Bull. Japan Soc. Precision Engr. 10 (4), p. 1773.
3. Mazumder, J. (1983) J. Metals, 35 (5), p. 19.
4. Chan, C.L. (1986) Ph. D. Thesis, University of Illinois, Urbana.
5. Molian, P.A., Yang, Y.M., and Patnaik, P.C. (1992) J. of Materials Science 2687.