1. Clinical Neuro-ophthalmology;Walsh,1947
2. Craniofacial dysostosis (Crouzon's disease);Crouzon;Am. J. Ophth.,1950
3. Developmental Abnormalities of the Eye;Mann,1937
4. Park and Powers: Quoted by Parks and Costenbader.2
5. Virchow: Quoted by Walsh.1