1. Vergence and accommodation. Can change in size induce vergence movements?;Alpern;A. M. A. Arch. Ophthal.,1958
2. Types of movement;Alpern,1962
3. The illusion of depth from single pictures;Ames;J. opt. Soc. Am.,1925
4. Stereoscopie monoculaire paradoxale;Claparède;Ann. d'Oculist.,1904
5. Ocular vergence movements induced by changing size and disparity;Collewijn;Invest. Ophthal. visual Sci., Suppl.,1986