1. On the fracture behaviour of magnesium oxide bi-crystals
2. 3Clarence Zener , "Micromechanism of Fracture "; pp.3 -31 inFracturing of Metals (Seminar on Fracturing of Metals, Twenty-Ninth National Metal Congress and Exposition, Chicago, 1947). American Society for Metals, Cleveland, Ohio. 3 pp.
3. Crack nucleation in magnesium oxide bi-crystals under compression
4. 5S. Feuerstein, and E. R. Parker , "The Effect of Grain Boundaries on Mechanical Properties of Ionic Crystals ," Minerals Research Laboratory, University of California at Berkeley, Series No. 150, Tech. Rept. No. 5, 63 pp. (1962 ).