1. P. Meuffels and W. A. Oates, (1986) to be published.
2. A simple method of calculation of the configurational entropy for interstitial solutions with short range repulsive interactions
3. D. A. Faux and D. K. Ross, J. Phys. C: Solid State Phys., in the press.
4. Imperfections in Nearly Perfect Crystals;Bardeen,1952