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2. Toxicology of the Eye;GRANT, W.M.,1962
3. (Further references may be found here.);Thomas, Springfield; Ill. HorFmANN, D.H.;Klin. Mbl. Augenheilk,1965
4. OAKS, L. W., DORMAN, J. E., and PErry, R. W. (1960). A.M.A. Arch. Ophthal., 63, 698.
5. PAssow, A. (1939). Klin. Mbl. Augenheilk., 102, 431.