1. H. G. Nelson and D. P. Williams, NACE5, Unieux Firminy, France, p. 390 (1977).
2. Gaseous hydrogen embrittlement of high strength steels
3. Hydrogen in Metals;McMahon,1981
4. Hydrogen in Metals;Jones,1981
5. Brittle fracture in a ductile material with application to hydrogen embrittlement