1. On the formation and properties of helical dislocations
2. Observation of helicoidal dislocation lines in fluorite crystals
3. Dash, W. C. 1958.Growth and Perfection of Crystals, Edited by: Doremus, R. H., Roberts, B. W. and Turnbull, D. 361–382. New York: Wiley.
4. Evans, T. 1965.Physical Properties of Diamond, Edited by: Berman, R. 116–134. Oxford: Clarendon. Chapter 4, fig. 59.
5. Helical dislocations in crystals of lead iodide