It was noted that interfaces in materials could be described as planar arrays of dislocations, and were sources of internal stress as well as constituting strong obstacles to dislocation motion. The stress field which was associated with infinite periodic dislocations arrays had long been known, but 2 important features were considered here. These were the influence of disorder in an infinite array, and of end effects which were due to incomplete arrays.

G.Saada: Materials Science Forum, 1995, 189-190, 149-54