References
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- Dekking, H. M., “Photographic Investigation of the Lye,” Journ Biol. Phot. Assn. III, 3, p. 88. 1936.
- Fincham. E. F., “The Mechanism of Accommodation,” Brit Journ. Ophth. (Mon. Supp. VIII). 1935.
- Hansell, P., and Beeson. E. J. G., “Retinal Photography in Colour,” Brit. Journ. Ophth., 37, 65–69. 1953.