1. A Natural history of vision;Wade,2000
2. The geographic factor in the onset of presbyopia;Miranda;Trans Am Ophthalmol Soc,1979
3. Presbyopia—a maverick of human aging;Pierścionek;Arch Gerontol Geriatr,1995
4. The Ascent of Man;Bronowski,1990
5. Improvements in and relating to multifocal lenses and the like, and the method of Grinding Same;Aves;GB Patent,1908