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1. Ragnar Granit: Processes of adaptation in the vertebrate retina in the light of recent photochemical and electrophysiological research. Documenta Ophthalmologica. 1938, 1: 7-77.
   DOI: 10.1007/BF00196424

2. William David Wright and Ragnar Granit: On the correlation of some sensory and physiological phenomena of vision. British J Ophthalm. Monogr. Suppl., 9. London, 1938, 80 p.