1. Physiology of the Eye: Clinical Application;Adler,1950
2. Analysis of ocular movements by means of an electrical method;Brockhurst;Arch. Ophth.,1951
3. Ueber die Anfangsgeschwindigkeit der Augenbewegungen;Bruckner;Pflüger's Arch. f. Physiol.,1902
4. Reading and Visual Fatigue;Carmichael,1947
5. The effect of interfixation distance on binocular fixation movements;Clark;J. Exper. Psychol.,1936