1. C.A. Zapffe and C.E. Sims, “Hydrogen Embrittlement Internal Stress and Defects in Steel,” Trans. AIME, 145 (1941), pp. 225–259.
2. D.P. Smith, Hydrogen in Metals (Chicago: University of Chicago Press, 1948).
3. R.P. Frohmberg, W.J. Barnett, and A.R. Troiano, “Delayed Failure and Hydrogen Embrittlement in Steel,” Trans. ASM, 47 (1955), pp. 892–925.
4. E.P. Klier, B.B. Muvdi, and G. Sachs, “Hydrogen Embrittlement in an Ultra-High-Strength 4340 Steel,” Trans. AIME, 209 (1957), pp. 106–112.
5. A.R. Troiano, “The Role of Hydrogen and Other Interstitials in the Mechanical Behavior of Metals,” Trans. ASM, 52 (1960), pp. 54–80.