1. Physiology of the Eye. Clinical Applications;Adler,1965
2. Rolling of the eye around its visual axis during normal ocular movements;Quereau;Arch. Ophth.,1955
3. The measurement of eye torsion;Howard;Vision Res.,1963
4. Le Champ Visuel; Topographie Normale et Pathologique de ses Sensibilites;Dubois-Poulsen,1952
5. Text-book of Ophthalmology;Duke-Elder,1949