1. Plates for Testing Colour Vision;BOSTROM, C.G.,1950
2. Plates for Testing Colour Vision;KUGELBERG, I.,1944
3. Dvorine Pseudo-Isochromatic Plates;DVORINE, I.,1953
4. AO-HRR Pseudo-Isochromatic Plates for Detecting, Classifying, and Estimating the Degree of Defective Colour Vision;HARDY, L.; RAND, G.; RITrLER, M.C.,1955
5. SLOAN, L. L., and HABEL, A. (1956). A.M.A. Arch. Ophthal., 55, 229.