1. F. Vogel, W. Pfann, H. Corey, and E. Thomas: Observations of Dislocations in Lineage Boundaries in Germanium. Physical Review, 1953, vol. 90, p. 489.
2. J. C. Fisher: Dislocations. Impurities and Imperfections. 1955. Cleveland. ASM.
3. C. A. Cinnamon and A. B. Martin: Growth Conditions for Single and Optically Mosaic Crystals of Zinc. Journal of Applied Physics, 1940, vol. 2, p. 87.
4. J. J. Oberly: Etch Pits and Dislocations in Germanium and Silicon. AIME Trans., 1954, vol. 200, p. 1025; Journal of Metals, September 1954.
5. J. M. Burgers: Some Considerations on the Fields of Stress Connected with Dislocations in a Regular Crystal Lattice. Proceedings Kon. Neder. Akad. v. Weten., 1939, vol. 42, p. 293.