1. On the Mechanism of the Eye;Young;Philadelphia Trans.,1801
2. Ueber die Akkommodation des Auges;von Helmholtz;Graefe's Arch. Ophth.,1855
3. Physiologic Optics, Dioptrics of the Eye;Tscherning,1900
4. The Mechanism of Accommodation;Fincham;Brit. J. Ophth.,1937
5. Accommodative changes in the axial dimensions of the human eye;Coleman,1969