1. Walker AE. Lissencephaly. Arch Neurol Psychiatr 1942; 48:13-29.
2. The heterogeneity of microphthalmia in the mentally retarded;Warburg, M.,1971
3. Hydrocephaly, congenital retinal nonattachment, and congenital falciform fold;Warburg, M.;Am J Ophthalmol,1978
4. A familial syndrome of central nervous system and ocular malformations;Chemke, J.; Czernobilsky, B.; Mundel, G.;Clin Genet,1975
5. retinal dysplasia, encephalocele (HARD ±E) syndrome: an autosomal recessive condition;Pagon, R.A.; Chandler, J.W.; Collie, W.R.;Birth Defects; XIV, No 6B,1978