1. A. W. Pense and R. D. Stout, Welding Research Council Bulletin No. 205, 1975.
2. G. R. Brophy and A. J. Miller, Trans. ASM 41, 1185 (1949).
3. T. N. Armstrong and G. R. Brophy, The American Society of Mechanical Engineers, The International Nickel Company, New York, Oct. 1947.
4. C. W. Marschall, R. F. Hehemann, and A. R. Troiano, Trans. ASM 55, 135 (1962).
5. C. W. Marschall, Ph.D. Thesis, Case Inst, of Tech., Cleveland, OH (1961).