FERRONI, E Action of U.V. radiation on the orientation of porphyrins arranged in a monomolecular layer. [electronic resource] - Panminerva medica Sep 1962 - 379-81 p. digital Publication Type: Journal Article ISSN: 0031-0808 Subjects--Topical Terms: HumansPorphyrinsRadiation EffectsUltraviolet Rays