1. J. Bardeen, C. Herring, in: Atom Movements A.S.M. Cleveland, 1951, p. 87–288
2. J. Bardeen, C. Herring, in: Imperfections in Nearly Perfect Solids, W. Shockley (Ed.), Wiley, New York, 1952, p. 262
3. R. Friauf, Phys. Rev. 105, 843 (1957)
4. R. Friauf, J. Appl. Phys. Supp. 33, 494 (1962)
5. E.G. Montroll, Symp. Appl. Math. 16, 193 (1964)