1. R. D. Stout, Weld. Res. Counc, Rep. Prog.
30:35 (1975).
2. J. P. Bruner and D. A. Sarno, “A Comparison of Three Steels for Cryogenic Service,” paper presented at the Soviet-American Seminar on Applied Problems of Low-Temperature Materials and Welding Cryogenic Structures. Kiev, USSR (1976).
3. “Standard Method for Conducting Drop-Weight Test to Determine Nil-Ductility Transition Temperature of Ferritic Steels,” E-208, 1975 Annual Book of ASTM Standards Part 10, ASTM, Philadelphia, Pennsylvania (1975).
4. W. S. Pellini, Weld Res. Counc. Bull.
186:1 (1973).
5. “Proposed Method for
$${5 \over 8}$$
in. (16 mm) Dynamic Tear Test of Metallic Materials,” 1975 Annual Book of ASTM Standards, Part 10, ASTM, Philadelphia, Pennsylvania (1975), p. 605.