1. Scholl, I. L.: Personal communication.
2. An apparatus for grading the visual acuity of infants on the basis of opticokinetic nystagmus;Gorman;Pediatrics,1957
3. Ocular signs associated with hydranencephaly;Hill;Am. J. Ophth.,1961
4. Marquis, D. G.: Effects of removal of visual cortex in mammals with observations on the retention of light discrimination in dogs: A. Research Nervous and Mental Diseases. Proceedings. Baltimore, Williams & Wilkins, V. 13, p. 558.
5. A type of congenital ocular motor apraxia presenting jerky head movements;Cogan;Tr. Am. Acad. Ophth.,1952