1. Smithsonian Physical Tables;Fowle,1934
2. Appendix to Helmholtz' Physiologische Optik;Gullstrand,1909
3. The topography of vision in mammals of contrasting lifestyle: comparative optics and retinal organisation;Hughes,1977
4. Form and Space Vision;Le Grand,1967
5. Model of refractive index distribution in the rabbit crystalline lens;Nakao;J. opt. Soc. Am.,1968