1. C.R. Heiple and J. R. Roper:Weld. Journal, 1982, vol. 61, pp. 97s-102s.
2. C.R. Heiple, J.R. Roper, R.T. Stagner, and J.J. Alden:Weld. Journal, 1983, vol. 62, pp. 72s-77s.
3. R.E. Sundell, S. M. Correa, H. D. Solomon, L. A. Wojcik, D. W. Walsh, and W. F. Savage:1985 NSF Manufacturing Systems Research Conference, May 14-17, 1985, University of Wisconsin-Madison.
4. B. Von Szyszkowski:Z. Phys. Chem., 1908, vol. 64, pp. 385–414.
5. G. Bernard and C. H. P. Lupis:Surf. Sci., 1974, vol. 42, pp. 61–85.