1. XI. Bakerian lecture.–The crystalline structure of metals
2. R. W. Armstrong and F. J. Zerilli, in Advances in Twinning, edited by S. Ankem and C. S. Pande (The Minerals, Metals and Materials Society, Pittsburgh, PA, 1999), p. 67.
3. Surface effects in plastic deformation of metals
4. R. W. Armstrong and P. J. Worthington, in Metallurgical Effects at High Strain Rates, edited by R. W. Rohde, B. M. Butcher, and J. R. Holland (Plenum Press, New York, 1973), p. 401.