1. Benedek, G.B.: Appl. Opt. 10, 459 (1971)
2. Hoenders, H.J., Bloemendal, H., in: Molecular and Cellular Biology of the Eye Lens, p. 279 (Bloemendal, H., ed.). New York: Wiley 1981
3. Hockwin, O., Dragomirescu, V., in: Altern der Linse, p. 125 (Hockwin, O., ed.). Miesbach: Mayr 1982
4. Lerman, S., in: ibid., p. 139
5. Rathbun, W.B., Hanson, S.K.: Ophthal. Res. 11, 172 (1979)