1. P. Drude Annalen der Physik 1, 566 (1900)
2. Annalen der Physik 3, 369 (1900).
3. O.M. Corbino Il Nuovo Cimento 1, 27 (1911); Il Nuovo Cimento 2, 39 (1911)
4. Rudolf Peierls: Surprises in Theoretical Physics (Princeton University Press, Princeton 1979 )
5. J.R. Schrieffer in Semiconductor Surface Physics R.H. Kinston ed. (University of Pennsylvania Press, Philadelphia, 1957 ) pp. 55–69