1. Höber, R.: Physical chemistry of Cells and tissues, S. 617. Philadelphia: Blakiston Company 1948.
2. Müller, H. K.: 51. Ber. Dtsch. Ophthalm. Ges. Heidelberg 1936, S. 128.
3. : Arch. Augenheilk.110, 128. (1937).
4. Müller, H. K., u.O. Kleifeld: Graefes Arch.153, 177 (1952).
5. Palm, E.: Acta ophthalm. (Kobenh.)32 (1948).