1. Solidification, segregation and weld imperfections, 1980 Houdremont Lecture;Savage;Weld. World,1980
2. Features in weld solidification structure of high purity aluminum sheet;Hakagawa;Trans. Japan Welding Soc.,1973
3. R. Sekerka, private communication.
4. L. Brush, private communication, experimental samples at Metallurgical Engineering and Materials Science at Carnegie-Mellon University.
5. Elliptic Partial Differential Equations of Second Order;Gilbarg,1977