1. Photpdynamic Action and Diseases Caused by Light;Blum,1941
2. Carcinogenesis by Ultraviolet Light: An Essay in Quantitative Biology;Blurn,1959
3. Sources of Ultraviolet and Infrared Radiation Used in Therapy;Coblentz;J.A.M.A.,1946
4. Radiation Biology;Sanderson,1955
5. Relative Efficiency of Pigment and Horny Layer Thickness in Protecting the Skin of Europeans and Africans Against Solar Ultraviolet Radiation;Thompson;J. Physiol.,1955